Find the dot product of u and v. $\begin{array} { l }
\mathbf { u } = 7 \mathbf { i } - 10 \mathbf { j } + 8 \mathbf { k } \
\mathbf { v } = 24 \mathbf { i } + 8 \mathbf { j } - \mathbf { k }
\end{array}$
A) $ u^{.}v =$ 78
B) $ u^{.}v =$ 81
C) $ u^{.}v =$ 80
D) $ u^{.}v =$ 79
E) $ u^{.}v =$ 82

Question

Find the dot product of u and v.  $\begin{array} { l } 
\mathbf { u } = 7 \mathbf { i } - 10 \mathbf { j } + 8 \mathbf { k } \
\mathbf { v } = 24 \mathbf { i } + 8 \mathbf { j } - \mathbf { k }
\end{array}$ 
A) $ u^{.}v =$ 78
B) $ u^{.}v =$ 81
C) $ u^{.}v =$ 80
D) $ u^{.}v =$ 79
E) $ u^{.}v =$ 82

Quizplus · Accepted Answer

The dot product is calculated as $ u \cdot v = (7)(24) + (-10)(8) + (8)(-1) = 168 - 80 - 8 = 80 $.

Find the Dot Product of U and V A) u.v= u^{.}v =u.v=

Find the Dot Product of U and V A) $u^{.}v =$