Solved

Find the Second Directional Derivative of F(x, Y) = Cos(xy) $\pi$

Question 88

Multiple Choice

Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( $\pi$ , 1/4) in the direction of the vector $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$ i + j.

A) - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$ - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$
B) - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$ - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$
C) - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$ + $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$
D) - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$ - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$
E) - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$ - $Find the second directional derivative of f(x, y) = cos(xy) + sin(xy) at ( \pi , 1/4) in the direction of the vector i + j. A) - - B) - - C) - + D) - - E) - -$