Find the dot product of u and v. $\begin{array} { l }
\mathbf { u } = 5 \mathbf { j } - 10 \mathbf { k } \
\mathbf { v } = 10 \mathbf { i } - 6 \mathbf { j } - 4 \mathbf { k }
\end{array}$
A) $ u^{.}v =$ 12
B) $ u^{.}v =$ 9
C) $ u^{.}v =$ 8
D) $ u^{.}v =$ 11
E) $ u^{.}v =$ 10

Question

Find the dot product of u and v.  $\begin{array} { l } 
\mathbf { u } = 5 \mathbf { j } - 10 \mathbf { k } \
\mathbf { v } = 10 \mathbf { i } - 6 \mathbf { j } - 4 \mathbf { k }
\end{array}$ 
A) $ u^{.}v =$ 12
B) $ u^{.}v =$ 9
C) $ u^{.}v =$ 8
D) $ u^{.}v =$ 11
E) $ u^{.}v =$ 10

Quizplus · Accepted Answer

The dot product is calculated as $ u \cdot v = (0)(10) + (5)(-6) + (-10)(-4) = 0 - 30 + 40 = 10 $.

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

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