Use the Vectors $\mathbf { u } = \langle 2,2 \rangle$

Multiple Choice

Use the vectors $\mathbf { u } = \langle 2,2 \rangle$ , $\mathbf { v } = \langle - 2,2 \rangle$ to find the indicated quantity.State whether the result is a vector or a scalar. $3 \mathbf { u } \cdot \mathbf { v }$

A) $\langle 0,2 \rangle$ ; vector
B) -2; scalar
C) 2; scalar
D) $\langle 4 , - 4 \rangle$ ; vector
E) 0; scalar