Deck 14: Partial Derivatives

ملء الشاشة (f)
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سؤال
Use Lagrange multipliers to find the maximum value of the function subject to the given constraint. <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
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سؤال
At what point is the following function a local minimum? <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the absolute minimum value of the function <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   <div style=padding-top: 35px> on the set D. D is the region bounded by the parabola <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   <div style=padding-top: 35px> and the line <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   <div style=padding-top: 35px>

A)0
B) <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   <div style=padding-top: 35px>
C) <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   <div style=padding-top: 35px>
D)30
E) <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   <div style=padding-top: 35px>
سؤال
Use Lagrange multipliers to find the maximum and the minimum of f subject to the given constraint(s). Use Lagrange multipliers to find the maximum and the minimum of f subject to the given constraint(s).  <div style=padding-top: 35px>
سؤال
Find the points on the surface <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> that are closest to the origin.

A) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Use Lagrange multipliers to find the maximum and minimum values of the function Use Lagrange multipliers to find the maximum and minimum values of the function   subject to the constraints   and   .<div style=padding-top: 35px> subject to the constraints Use Lagrange multipliers to find the maximum and minimum values of the function   subject to the constraints   and   .<div style=padding-top: 35px> and Use Lagrange multipliers to find the maximum and minimum values of the function   subject to the constraints   and   .<div style=padding-top: 35px> .
سؤال
Find and classify the relative extrema and saddle points of the function <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None <div style=padding-top: 35px> for <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None <div style=padding-top: 35px> and <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None <div style=padding-top: 35px> .

A)Saddle point <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None <div style=padding-top: 35px>
B)Relative minimum <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None <div style=padding-top: 35px>
C)Relative maximum <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None <div style=padding-top: 35px>
D)None
سؤال
Find all the saddle points of the function. <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the direction in which the maximum rate of change of f at the given point occurs. <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the shortest distance from the point <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> to the plane <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> .

A) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the critical points of the function. <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of <strong>Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of   ,   ,   what can you say about f ?</strong> A)f has a local maximum at (1,1) B)f has a local minimum at (1,1) C)f has a saddle point at (1,1) <div style=padding-top: 35px> , <strong>Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of   ,   ,   what can you say about f ?</strong> A)f has a local maximum at (1,1) B)f has a local minimum at (1,1) C)f has a saddle point at (1,1) <div style=padding-top: 35px> , <strong>Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of   ,   ,   what can you say about f ?</strong> A)f has a local maximum at (1,1) B)f has a local minimum at (1,1) C)f has a saddle point at (1,1) <div style=padding-top: 35px> what can you say about f ?

A)f has a local maximum at (1,1)
B)f has a local minimum at (1,1)
C)f has a saddle point at (1,1)
سؤال
At what point is the following function a local maximum? <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the absolute extrema of the function <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 <div style=padding-top: 35px> on the closed triangular region with vertices <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 <div style=padding-top: 35px> , <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 <div style=padding-top: 35px> and <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 <div style=padding-top: 35px> .

A)Absolute minimum 5, Absolute maximum 17
B)Absolute minimum -5, Absolute maximum 5
C)Absolute minimum 0, Absolute maximum 5
D)Absolute minimum -5, Absolute maximum 17
سؤال
Use Lagrange multipliers to find the maximum value of the function subject to the given constraints. Use Lagrange multipliers to find the maximum value of the function subject to the given constraints.  <div style=padding-top: 35px>
سؤال
Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px>

A) <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px> , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px> , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px>
B) <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px> , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px> , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px>
C)32, <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 <div style=padding-top: 35px> , 16
D)32, 32, 32
E)4, 8, 16
سؤال
Find the dimensions of the rectangular box with largest volume if the total surface area is given as <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> .

A) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm
B) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, 1.75 cm, 1.75 cm
C) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm
D) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, 3.5 cm
E) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <div style=padding-top: 35px> cm, 1.75 cm
سؤال
Use Lagrange multipliers to find the maximum value of the function subject to the given constraint. <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Use Lagrange multipliers to find the minimum value of the function subject to the given constraints. Use Lagrange multipliers to find the minimum value of the function subject to the given constraints.  <div style=padding-top: 35px>
سؤال
Find three positive numbers whose sum is <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> and whose product is a maximum.

A) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Evaluate the gradient of f at the point P. Evaluate the gradient of f at the point P.  <div style=padding-top: 35px>
سؤال
Which of the given points are the points on the hyperboloid <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> where the normal line is parallel to the line that joins the points <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> and <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> .
Select all that apply.

A) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the gradient of the function <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> .

A) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the maximum rate of change of <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these <div style=padding-top: 35px> at the point <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these <div style=padding-top: 35px> (2,1). In what direction does it occur?

A) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these <div style=padding-top: 35px>
B) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these <div style=padding-top: 35px>
C) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these <div style=padding-top: 35px>
D) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these <div style=padding-top: 35px>
E)none of these
سؤال
Find equations for the tangent plane and the normal line to the surface with equation <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> at the point <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>

A) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
B) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
C) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
D) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
سؤال
Find three positive numbers whose sum is Find three positive numbers whose sum is   and whose product is a maximum.<div style=padding-top: 35px> and whose product is a maximum.
سؤال
Find and classify the relative extrema and saddle points of the function Find and classify the relative extrema and saddle points of the function   .<div style=padding-top: 35px> .
سؤال
Find the maximum rate of change of f at the given point. Find the maximum rate of change of f at the given point.  <div style=padding-top: 35px>
سؤال
Find equations for the tangent plane and the normal line to the surface with equation <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> at the point <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>

A) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
B) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
C) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
D) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
سؤال
If <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> use the gradient vector <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> to find the tangent line to the level curve <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> at the point <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> .

A) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the absolute extrema of the function Find the absolute extrema of the function   on the region bounded by the disk defined by   .<div style=padding-top: 35px> on the region bounded by the disk defined by Find the absolute extrema of the function   on the region bounded by the disk defined by   .<div style=padding-top: 35px> .
سؤال
Find the equation of the tangent plane to the given surface at the specified point. Find the equation of the tangent plane to the given surface at the specified point.  <div style=padding-top: 35px>
سؤال
Find the directional derivative of <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these <div style=padding-top: 35px> at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.

A) <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these <div style=padding-top: 35px>
B) <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these <div style=padding-top: 35px>
C)28
D) <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these <div style=padding-top: 35px>
E)none of these
سؤال
A cardboard box without a lid is to have a volume of A cardboard box without a lid is to have a volume of   cm   . Find the dimensions that minimize the amount of cardboard used.<div style=padding-top: 35px> cm A cardboard box without a lid is to have a volume of   cm   . Find the dimensions that minimize the amount of cardboard used.<div style=padding-top: 35px> . Find the dimensions that minimize the amount of cardboard used.
سؤال
Find the directional derivative of the function <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   <div style=padding-top: 35px> at the point <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   <div style=padding-top: 35px> in the direction of the unit vector that makes the angle <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   <div style=padding-top: 35px> with the positive x-axis.

A)11
B) <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   <div style=padding-top: 35px>
C)1
D) <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   <div style=padding-top: 35px>
سؤال
Find the equation of the normal line to the given surface at the specified point. <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the local maximum, and minimum value and saddle points of the function. Find the local maximum, and minimum value and saddle points of the function.  <div style=padding-top: 35px>
سؤال
Find the direction in which the function Find the direction in which the function   decreases fastest at the point   .<div style=padding-top: 35px> decreases fastest at the point Find the direction in which the function   decreases fastest at the point   .<div style=padding-top: 35px> .
سؤال
Suppose that over a certain region of space the electrical potential V is given by <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   <div style=padding-top: 35px> . Find the rate of change of the potential at <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   <div style=padding-top: 35px> in the direction of the vector <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   <div style=padding-top: 35px> .

A)44
B) <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   <div style=padding-top: 35px>
C)-2.91
D)20
E) <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   <div style=padding-top: 35px>
سؤال
Find three positive real numbers whose sum is 388 and whose product is as large as possible.
سؤال
The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> in. and the height is <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> in.?

A) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.

A)113 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23   <div style=padding-top: 35px>
B)113.33 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23   <div style=padding-top: 35px>
C)113.81 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23   <div style=padding-top: 35px>
D)113.89 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23   <div style=padding-top: 35px>
E)113.23 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23   <div style=padding-top: 35px>
سؤال
Use the Chain Rule to find <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> if <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find an equation of the tangent plane to the given surface at the specified point. Find an equation of the tangent plane to the given surface at the specified point.  <div style=padding-top: 35px>
سؤال
Use partial derivatives to find the implicit partial derivatives Use partial derivatives to find the implicit partial derivatives   and    <div style=padding-top: 35px> and Use partial derivatives to find the implicit partial derivatives   and    <div style=padding-top: 35px> Use partial derivatives to find the implicit partial derivatives   and    <div style=padding-top: 35px>
سؤال
Find the differential of the function <strong>Find the differential of the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find the differential of the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find the differential of the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find the differential of the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find the differential of the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the equation of the tangent plane to the given surface at the specified point. <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
The length l, width w and height h of a box change with time. At a certain instant the dimensions are The length l, width w and height h of a box change with time. At a certain instant the dimensions are   and   , and l and w are increasing at a rate of 10 m/s while h is decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing.<div style=padding-top: 35px> and The length l, width w and height h of a box change with time. At a certain instant the dimensions are   and   , and l and w are increasing at a rate of 10 m/s while h is decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing.<div style=padding-top: 35px> , and l and w are increasing at a rate of 10 m/s while h is decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing.
سؤال
Find the gradient of the function Find the gradient of the function   .<div style=padding-top: 35px> .
سؤال
Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)

A)6.7 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <div style=padding-top: 35px>
B)6.91 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <div style=padding-top: 35px>
C)6.99 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <div style=padding-top: 35px>
D)8.34 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <div style=padding-top: 35px>
E) <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <div style=padding-top: 35px> <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <div style=padding-top: 35px>
سؤال
Find the limit if Find the limit if   .  <div style=padding-top: 35px> . Find the limit if   .  <div style=padding-top: 35px>
سؤال
Find the gradient of Find the gradient of   at the point  <div style=padding-top: 35px> at the point Find the gradient of   at the point  <div style=padding-top: 35px>
سؤال
Use the Chain Rule to find <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> . <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the equation of the normal line to the given surface at the specified point. Find the equation of the normal line to the given surface at the specified point.  <div style=padding-top: 35px>
سؤال
Use the Chain Rule to find <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the Chain Rule to find Use the Chain Rule to find   where   .  <div style=padding-top: 35px> where Use the Chain Rule to find   where   .  <div style=padding-top: 35px> . Use the Chain Rule to find   where   .  <div style=padding-top: 35px>
سؤال
Find the equation of the tangent plane to the given surface at the specified point. Find the equation of the tangent plane to the given surface at the specified point.  <div style=padding-top: 35px>
سؤال
Use the Chain Rule to find <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> . <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Use implicit differentiation to find Use implicit differentiation to find   .  <div style=padding-top: 35px> . Use implicit differentiation to find   .  <div style=padding-top: 35px>
سؤال
Use the equation <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> to find <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> . <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 <div style=padding-top: 35px> for <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 <div style=padding-top: 35px> .

A) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 <div style=padding-top: 35px>
B) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 <div style=padding-top: 35px>
C) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 <div style=padding-top: 35px>
D) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 <div style=padding-top: 35px>
E)0
سؤال
Find <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> for the function <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use implicit differentiation to find <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the definition of partial derivatives as limits to find <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> if <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> .

A) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> for the function <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px> .

A) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Use the linearization L(x, y) of the function. Use the linearization L(x, y) of the function.   at   to approximate   .<div style=padding-top: 35px> at Use the linearization L(x, y) of the function.   at   to approximate   .<div style=padding-top: 35px> to approximate Use the linearization L(x, y) of the function.   at   to approximate   .<div style=padding-top: 35px> .
سؤال
Find the linearization L(x, y) of the function at the given point. Find the linearization L(x, y) of the function at the given point.   Round the answers to the nearest hundredth.<div style=padding-top: 35px> Round the answers to the nearest hundredth.
سؤال
How many nth-order partial derivatives does a function of two variables have?

A) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Let Let   and suppose that   changes from   to   (a) Compute   (b) Compute  <div style=padding-top: 35px> and suppose that Let   and suppose that   changes from   to   (a) Compute   (b) Compute  <div style=padding-top: 35px> changes from Let   and suppose that   changes from   to   (a) Compute   (b) Compute  <div style=padding-top: 35px> to Let   and suppose that   changes from   to   (a) Compute   (b) Compute  <div style=padding-top: 35px> (a) Compute Let   and suppose that   changes from   to   (a) Compute   (b) Compute  <div style=padding-top: 35px> (b) Compute Let   and suppose that   changes from   to   (a) Compute   (b) Compute  <div style=padding-top: 35px>
سؤال
Find the differential of the function. Find the differential of the function.  <div style=padding-top: 35px>
سؤال
Find the differential of the function Find the differential of the function  <div style=padding-top: 35px>
سؤال
Use implicit differentiation to find <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> for the function <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find   for the function  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
The height of a hill (in feet) is given by <strong>The height of a hill (in feet) is given by   where x is the distance (in miles) east and y is the distance (in miles) north of your cabin. If you are at a point on the hill 1 mile north and 1 mile east of your cabin, what is the rate of change of the height of the hill (a) in a northerly direction and (b) in an easterly direction?</strong> A)(a) 570 ft/mi, (b) 690 ft/mi B)(a) -570 ft/mi, (b) 690 ft/mi C)(a) 690 ft/mi, (b) 570 ft/mi D)(a) 690 ft/mi, (b) -570 ft/mi <div style=padding-top: 35px> where x is the distance (in miles) east and y is the distance (in miles) north of your cabin. If you are at a point on the hill 1 mile north and 1 mile east of your cabin, what is the rate of change of the height of the hill (a) in a northerly direction and (b) in an easterly direction?

A)(a) 570 ft/mi, (b) 690 ft/mi
B)(a) -570 ft/mi, (b) 690 ft/mi
C)(a) 690 ft/mi, (b) 570 ft/mi
D)(a) 690 ft/mi, (b) -570 ft/mi
سؤال
The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   <div style=padding-top: 35px> . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   <div style=padding-top: 35px> to the wind chill index function when T is near The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   <div style=padding-top: 35px> and v is near 30 kmh. The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   <div style=padding-top: 35px>
سؤال
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
D) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
E) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)   <div style=padding-top: 35px>
سؤال
Use differentials to estimate the amount of tin in a closed tin can with diameter 8 cm and height Use differentials to estimate the amount of tin in a closed tin can with diameter 8 cm and height   cm if the tin is 0.04 cm thick.<div style=padding-top: 35px> cm if the tin is 0.04 cm thick.
سؤال
Find the differential of the function Find the differential of the function  <div style=padding-top: 35px>
سؤال
If If   and   changes from (2, 1) to   find dz.<div style=padding-top: 35px> and If   and   changes from (2, 1) to   find dz.<div style=padding-top: 35px> changes from (2, 1) to If   and   changes from (2, 1) to   find dz.<div style=padding-top: 35px> find dz.
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Deck 14: Partial Derivatives
1
Use Lagrange multipliers to find the maximum value of the function subject to the given constraint. <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)

A) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
B) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
C) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
D) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
E) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
2
At what point is the following function a local minimum? <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)

A) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)
B) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)
C) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)
D) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)
E) <strong>At what point is the following function a local minimum?  </strong> A)   B)   C)   D)   E)
3
Find the absolute minimum value of the function <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   on the set D. D is the region bounded by the parabola <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)   and the line <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)

A)0
B) <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)
C) <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)
D)30
E) <strong>Find the absolute minimum value of the function   on the set D. D is the region bounded by the parabola   and the line  </strong> A)0 B)   C)   D)30 E)
4
Use Lagrange multipliers to find the maximum and the minimum of f subject to the given constraint(s). Use Lagrange multipliers to find the maximum and the minimum of f subject to the given constraint(s).
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5
Find the points on the surface <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)   that are closest to the origin.

A) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)
B) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)
C) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)
D) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)
E) <strong>Find the points on the surface   that are closest to the origin.</strong> A)   B)   C)   D)   E)
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6
Use Lagrange multipliers to find the maximum and minimum values of the function Use Lagrange multipliers to find the maximum and minimum values of the function   subject to the constraints   and   . subject to the constraints Use Lagrange multipliers to find the maximum and minimum values of the function   subject to the constraints   and   . and Use Lagrange multipliers to find the maximum and minimum values of the function   subject to the constraints   and   . .
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7
Find and classify the relative extrema and saddle points of the function <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None for <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None and <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None .

A)Saddle point <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None
B)Relative minimum <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None
C)Relative maximum <strong>Find and classify the relative extrema and saddle points of the function   for   and   .</strong> A)Saddle point   B)Relative minimum   C)Relative maximum   D)None
D)None
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8
Find all the saddle points of the function. <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)

A) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)
B) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)
C) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)
D) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)
E) <strong>Find all the saddle points of the function.  </strong> A)   B)   C)   D)   E)
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9
Find the direction in which the maximum rate of change of f at the given point occurs. <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)

A) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)
B) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)
C) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)
D) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)
E) <strong>Find the direction in which the maximum rate of change of f at the given point occurs.  </strong> A)   B)   C)   D)   E)
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10
Find the shortest distance from the point <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   to the plane <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)   .

A) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)
B) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)
C) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)
D) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)
E) <strong>Find the shortest distance from the point   to the plane   .</strong> A)   B)   C)   D)   E)
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11
Find the critical points of the function. <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)

A) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)
B) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)
C) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)
D) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)
E) <strong>Find the critical points of the function.  </strong> A)   B)   C)   D)   E)
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12
Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of <strong>Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of   ,   ,   what can you say about f ?</strong> A)f has a local maximum at (1,1) B)f has a local minimum at (1,1) C)f has a saddle point at (1,1) , <strong>Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of   ,   ,   what can you say about f ?</strong> A)f has a local maximum at (1,1) B)f has a local minimum at (1,1) C)f has a saddle point at (1,1) , <strong>Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In the case of   ,   ,   what can you say about f ?</strong> A)f has a local maximum at (1,1) B)f has a local minimum at (1,1) C)f has a saddle point at (1,1) what can you say about f ?

A)f has a local maximum at (1,1)
B)f has a local minimum at (1,1)
C)f has a saddle point at (1,1)
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13
At what point is the following function a local maximum? <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)

A) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)
B) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)
C) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)
D) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)
E) <strong>At what point is the following function a local maximum?  </strong> A)   B)   C)   D)   E)
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14
Find the absolute extrema of the function <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 on the closed triangular region with vertices <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 , <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 and <strong>Find the absolute extrema of the function   on the closed triangular region with vertices   ,   and   .</strong> A)Absolute minimum 5, Absolute maximum 17 B)Absolute minimum -5, Absolute maximum 5 C)Absolute minimum 0, Absolute maximum 5 D)Absolute minimum -5, Absolute maximum 17 .

A)Absolute minimum 5, Absolute maximum 17
B)Absolute minimum -5, Absolute maximum 5
C)Absolute minimum 0, Absolute maximum 5
D)Absolute minimum -5, Absolute maximum 17
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15
Use Lagrange multipliers to find the maximum value of the function subject to the given constraints. Use Lagrange multipliers to find the maximum value of the function subject to the given constraints.
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16
Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16

A) <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16
B) <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 , <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16
C)32, <strong>Find the dimensions of a rectangular box of maximum volume such that the sum of the lengths of its 12 edges is  </strong> A)   ,   ,   B)   ,   ,   C)32,   , 16 D)32, 32, 32 E)4, 8, 16 , 16
D)32, 32, 32
E)4, 8, 16
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17
Find the dimensions of the rectangular box with largest volume if the total surface area is given as <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm .

A) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm
B) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, 1.75 cm, 1.75 cm
C) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm
D) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, 3.5 cm
E) <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, <strong>Find the dimensions of the rectangular box with largest volume if the total surface area is given as     .</strong> A)   cm,   cm,   cm B)   cm, 1.75 cm, 1.75 cm C)   cm,   cm,   cm D)   cm,   cm, 3.5 cm E)   cm,   cm, 1.75 cm cm, 1.75 cm
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18
Use Lagrange multipliers to find the maximum value of the function subject to the given constraint. <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)

A) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
B) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
C) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
D) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
E) <strong>Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.  </strong> A)   B)   C)   D)   E)
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19
Use Lagrange multipliers to find the minimum value of the function subject to the given constraints. Use Lagrange multipliers to find the minimum value of the function subject to the given constraints.
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20
Find three positive numbers whose sum is <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)   and whose product is a maximum.

A) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)
B) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)
C) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)
D) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)
E) <strong>Find three positive numbers whose sum is   and whose product is a maximum.</strong> A)   B)   C)   D)   E)
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21
Evaluate the gradient of f at the point P. Evaluate the gradient of f at the point P.
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22
Which of the given points are the points on the hyperboloid <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   where the normal line is parallel to the line that joins the points <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   and <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)   .
Select all that apply.

A) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)
B) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)
C) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)
D) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)
E) <strong>Which of the given points are the points on the hyperboloid   where the normal line is parallel to the line that joins the points   and   . Select all that apply. </strong> A)   B)   C)   D)   E)
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23
Find the gradient of the function <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)   .

A) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)
B) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)
C) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)
D) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)
E) <strong>Find the gradient of the function   .</strong> A)   B)   C)   D)   E)
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24
Find the maximum rate of change of <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these at the point <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these (2,1). In what direction does it occur?

A) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these
B) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these
C) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these
D) <strong>Find the maximum rate of change of   at the point   (2,1). In what direction does it occur?</strong> A)   B)   C)   D)   E)none of these
E)none of these
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25
Find equations for the tangent plane and the normal line to the surface with equation <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   at the point <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,

A) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
B) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
C) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
D) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
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26
Find three positive numbers whose sum is Find three positive numbers whose sum is   and whose product is a maximum. and whose product is a maximum.
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27
Find and classify the relative extrema and saddle points of the function Find and classify the relative extrema and saddle points of the function   . .
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28
Find the maximum rate of change of f at the given point. Find the maximum rate of change of f at the given point.
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29
Find equations for the tangent plane and the normal line to the surface with equation <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   at the point <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,

A) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
B) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
C) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
D) <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>Find equations for the tangent plane and the normal line to the surface with equation   at the point  </strong> A)   ,   B)   ,   C)   ,   D)   ,
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30
If <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   use the gradient vector <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   to find the tangent line to the level curve <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   at the point <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)   .

A) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)
B) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)
C) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)
D) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)
E) <strong>If   use the gradient vector   to find the tangent line to the level curve   at the point   .</strong> A)   B)   C)   D)   E)
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31
Find the absolute extrema of the function Find the absolute extrema of the function   on the region bounded by the disk defined by   . on the region bounded by the disk defined by Find the absolute extrema of the function   on the region bounded by the disk defined by   . .
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32
Find the equation of the tangent plane to the given surface at the specified point. Find the equation of the tangent plane to the given surface at the specified point.
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33
Find the directional derivative of <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.

A) <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these
B) <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these
C)28
D) <strong>Find the directional derivative of   at the point (1, 3) in the direction toward the point (3, 1). Select the correct answer.</strong> A)   B)   C)28 D)   E)none of these
E)none of these
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34
A cardboard box without a lid is to have a volume of A cardboard box without a lid is to have a volume of   cm   . Find the dimensions that minimize the amount of cardboard used. cm A cardboard box without a lid is to have a volume of   cm   . Find the dimensions that minimize the amount of cardboard used. . Find the dimensions that minimize the amount of cardboard used.
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35
Find the directional derivative of the function <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   at the point <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   in the direction of the unit vector that makes the angle <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)   with the positive x-axis.

A)11
B) <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)
C)1
D) <strong>Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis.</strong> A)11 B)   C)1 D)
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36
Find the equation of the normal line to the given surface at the specified point. <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)

A) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
B) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
C) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
D) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
E) <strong>Find the equation of the normal line to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
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37
Find the local maximum, and minimum value and saddle points of the function. Find the local maximum, and minimum value and saddle points of the function.
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38
Find the direction in which the function Find the direction in which the function   decreases fastest at the point   . decreases fastest at the point Find the direction in which the function   decreases fastest at the point   . .
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39
Suppose that over a certain region of space the electrical potential V is given by <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   . Find the rate of change of the potential at <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   in the direction of the vector <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)   .

A)44
B) <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)
C)-2.91
D)20
E) <strong>Suppose that over a certain region of space the electrical potential V is given by   . Find the rate of change of the potential at   in the direction of the vector   .</strong> A)44 B)   C)-2.91 D)20 E)
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40
Find three positive real numbers whose sum is 388 and whose product is as large as possible.
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41
The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   in. and the height is <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)   in.?

A) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)
B) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)
C) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)
D) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)
E) <strong>The radius of a right circular cone is increasing at a rate of 5 in/s while its height is decreasing at a rate of 3.6 in/s. At what rate is the volume of the cone changing when the radius is   in. and the height is   in.?</strong> A)   B)   C)   D)   E)
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42
A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.

A)113 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23
B)113.33 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23
C)113.81 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23
D)113.89 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23
E)113.23 <strong>A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.</strong> A)113   B)113.33   C)113.81   D)113.89   E)113.23
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43
Use the Chain Rule to find <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   and <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   if <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   and <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)   <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)

A) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)
B) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)
C) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)
D) <strong>Use the Chain Rule to find   and   if     and    </strong> A)   B)   C)   D)
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44
Find an equation of the tangent plane to the given surface at the specified point. Find an equation of the tangent plane to the given surface at the specified point.
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45
Use partial derivatives to find the implicit partial derivatives Use partial derivatives to find the implicit partial derivatives   and    and Use partial derivatives to find the implicit partial derivatives   and    Use partial derivatives to find the implicit partial derivatives   and
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46
Find the differential of the function <strong>Find the differential of the function  </strong> A)   B)   C)   D)

A) <strong>Find the differential of the function  </strong> A)   B)   C)   D)
B) <strong>Find the differential of the function  </strong> A)   B)   C)   D)
C) <strong>Find the differential of the function  </strong> A)   B)   C)   D)
D) <strong>Find the differential of the function  </strong> A)   B)   C)   D)
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47
Find the equation of the tangent plane to the given surface at the specified point. <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)

A) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
B) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
C) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
D) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
E) <strong>Find the equation of the tangent plane to the given surface at the specified point.  </strong> A)   B)   C)   D)   E)
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48
The length l, width w and height h of a box change with time. At a certain instant the dimensions are The length l, width w and height h of a box change with time. At a certain instant the dimensions are   and   , and l and w are increasing at a rate of 10 m/s while h is decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing. and The length l, width w and height h of a box change with time. At a certain instant the dimensions are   and   , and l and w are increasing at a rate of 10 m/s while h is decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing. , and l and w are increasing at a rate of 10 m/s while h is decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing.
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49
Find the gradient of the function Find the gradient of the function   . .
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50
Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)

A)6.7 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)
B)6.91 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)
C)6.99 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)
D)8.34 <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)
E) <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)     <strong>Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)</strong> A)6.7   B)6.91   C)6.99   D)8.34   E)
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51
Find the limit if Find the limit if   .  . Find the limit if   .
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52
Find the gradient of Find the gradient of   at the point  at the point Find the gradient of   at the point
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53
Use the Chain Rule to find <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)   . <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)

A) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)
B) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)
C) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)
D) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)
E) <strong>Use the Chain Rule to find   .  </strong> A)   B)   C)   D)   E)
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54
Find the equation of the normal line to the given surface at the specified point. Find the equation of the normal line to the given surface at the specified point.
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55
Use the Chain Rule to find <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)   <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)

A) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)
B) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)
C) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)
D) <strong>Use the Chain Rule to find    </strong> A)   B)   C)   D)
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56
Use the Chain Rule to find Use the Chain Rule to find   where   .  where Use the Chain Rule to find   where   .  . Use the Chain Rule to find   where   .
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57
Find the equation of the tangent plane to the given surface at the specified point. Find the equation of the tangent plane to the given surface at the specified point.
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58
Use the Chain Rule to find <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   . <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)   <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)

A) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)
B) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)
C) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)
D) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)
E) <strong>Use the Chain Rule to find   .    </strong> A)   B)   C)   D)   E)
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59
Use implicit differentiation to find Use implicit differentiation to find   .  . Use implicit differentiation to find   .
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60
Use the equation <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   to find <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)   . <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)

A) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)
B) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)
C) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)
D) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)
E) <strong>Use the equation   to find   .  </strong> A)   B)   C)   D)   E)
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61
Find <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 for <strong>Find   for   .</strong> A)   B)   C)   D)   E)0 .

A) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0
B) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0
C) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0
D) <strong>Find   for   .</strong> A)   B)   C)   D)   E)0
E)0
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62
Find <strong>Find   for the function  </strong> A)   B)   C)   D)   for the function <strong>Find   for the function  </strong> A)   B)   C)   D)

A) <strong>Find   for the function  </strong> A)   B)   C)   D)
B) <strong>Find   for the function  </strong> A)   B)   C)   D)
C) <strong>Find   for the function  </strong> A)   B)   C)   D)
D) <strong>Find   for the function  </strong> A)   B)   C)   D)
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63
Use implicit differentiation to find <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)

A) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
B) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
C) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
D) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
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64
Use the definition of partial derivatives as limits to find <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   if <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)   .

A) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)
B) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)
C) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)
D) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)
E) <strong>Use the definition of partial derivatives as limits to find   if   .</strong> A)   B)   C)   D)   E)
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65
Find <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   for the function <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)   .

A) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)
B) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)
C) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)
D) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)
E) <strong>Find   for the function   .</strong> A)   B)   C)   D)   E)
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66
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
D) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
E) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
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67
Use the linearization L(x, y) of the function. Use the linearization L(x, y) of the function.   at   to approximate   . at Use the linearization L(x, y) of the function.   at   to approximate   . to approximate Use the linearization L(x, y) of the function.   at   to approximate   . .
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68
Find the linearization L(x, y) of the function at the given point. Find the linearization L(x, y) of the function at the given point.   Round the answers to the nearest hundredth. Round the answers to the nearest hundredth.
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69
How many nth-order partial derivatives does a function of two variables have?

A) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)
B) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)
C) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)
D) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)
E) <strong>How many nth-order partial derivatives does a function of two variables have?</strong> A)   B)   C)   D)   E)
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70
Let Let   and suppose that   changes from   to   (a) Compute   (b) Compute  and suppose that Let   and suppose that   changes from   to   (a) Compute   (b) Compute  changes from Let   and suppose that   changes from   to   (a) Compute   (b) Compute  to Let   and suppose that   changes from   to   (a) Compute   (b) Compute  (a) Compute Let   and suppose that   changes from   to   (a) Compute   (b) Compute  (b) Compute Let   and suppose that   changes from   to   (a) Compute   (b) Compute
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71
Find the differential of the function. Find the differential of the function.
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72
Find the differential of the function Find the differential of the function
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73
Use implicit differentiation to find <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)   <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)

A) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
B) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
C) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
D) <strong>Use implicit differentiation to find    </strong> A)   B)   C)   D)
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74
Find <strong>Find   for the function  </strong> A)   B)   C)   D)   for the function <strong>Find   for the function  </strong> A)   B)   C)   D)

A) <strong>Find   for the function  </strong> A)   B)   C)   D)
B) <strong>Find   for the function  </strong> A)   B)   C)   D)
C) <strong>Find   for the function  </strong> A)   B)   C)   D)
D) <strong>Find   for the function  </strong> A)   B)   C)   D)
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75
The height of a hill (in feet) is given by <strong>The height of a hill (in feet) is given by   where x is the distance (in miles) east and y is the distance (in miles) north of your cabin. If you are at a point on the hill 1 mile north and 1 mile east of your cabin, what is the rate of change of the height of the hill (a) in a northerly direction and (b) in an easterly direction?</strong> A)(a) 570 ft/mi, (b) 690 ft/mi B)(a) -570 ft/mi, (b) 690 ft/mi C)(a) 690 ft/mi, (b) 570 ft/mi D)(a) 690 ft/mi, (b) -570 ft/mi where x is the distance (in miles) east and y is the distance (in miles) north of your cabin. If you are at a point on the hill 1 mile north and 1 mile east of your cabin, what is the rate of change of the height of the hill (a) in a northerly direction and (b) in an easterly direction?

A)(a) 570 ft/mi, (b) 690 ft/mi
B)(a) -570 ft/mi, (b) 690 ft/mi
C)(a) 690 ft/mi, (b) 570 ft/mi
D)(a) 690 ft/mi, (b) -570 ft/mi
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76
The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   to the wind chill index function when T is near The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.   and v is near 30 kmh. The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write   . The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration. Use the table to find a linear approximation   to the wind chill index function when T is near   and v is near 30 kmh.
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77
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
D) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
E) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   E)
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78
Use differentials to estimate the amount of tin in a closed tin can with diameter 8 cm and height Use differentials to estimate the amount of tin in a closed tin can with diameter 8 cm and height   cm if the tin is 0.04 cm thick. cm if the tin is 0.04 cm thick.
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79
Find the differential of the function Find the differential of the function
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80
If If   and   changes from (2, 1) to   find dz. and If   and   changes from (2, 1) to   find dz. changes from (2, 1) to If   and   changes from (2, 1) to   find dz. find dz.
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