Find the length of the vector $2 a + 3 b$ , where $\mathbf { a } = \langle 1,1 \rangle$ and $\mathbf { b } = \langle - 1,2 \rangle$ .
A) $\sqrt { 51 }$
B) $\sqrt { 53 }$
C) $\sqrt { 57 }$
D) $\sqrt { 65 }$
E) $\sqrt { 71 }$
F) $\sqrt { 73 }$
G) $\sqrt { 82 }$
H) $\sqrt { 87 }$

Question

Find the length of the vector $2 a + 3 b$ , where $\mathbf { a } = \langle 1,1 \rangle$ and $\mathbf { b } = \langle - 1,2 \rangle$ .
A) $\sqrt { 51 }$ 
B) $\sqrt { 53 }$ 
C) $\sqrt { 57 }$ 
D) $\sqrt { 65 }$ 
E) $\sqrt { 71 }$ 
F) $\sqrt { 73 }$ 
G) $\sqrt { 82 }$ 
H) $\sqrt { 87 }$

Quizplus · Accepted Answer

The Answer of Find the length of the vector $2 a + 3 b$ , where $\mathbf { a } = \langle 1,1 \rangle$ and $\mathbf { b } = \langle - 1,2 \rangle$ .
A) $\sqrt { 51 }$ 
B) $\sqrt { 53 }$ 
C) $\sqrt { 57 }$ 
D) $\sqrt { 65 }$ 
E) $\sqrt { 71 }$ 
F) $\sqrt { 73 }$ 
G) $\sqrt { 82 }$ 
H) $\sqrt { 87 }$

Find the Length of the Vector 2a+3b2 a + 3 b2a+3b

Find the Length of the Vector $2 a + 3 b$