Find the dot product of $\mathbf { u }$ and $\mathbf { v }$.
$$\mathbf { u } = \langle 1 , - 6 , - 4 \rangle , \mathbf { v } = \langle 6,4,9 \rangle$$
A) $- 54$
B) 10
C) $\langle 6 , - 24 , - 36 \rangle$
D) 18
E) $\langle 7 , - 2,5 \rangle$

Question

Quizplus · Accepted Answer

The dot product of $\mathbf{u}$ and $\mathbf{v}$ is calculated as $1*6 + (-6)*4 + (-4)*9 = 6 - 24 - 36 = -54$.

Find the Dot Product Of u\mathbf { u }u And v\mathbf { v }v

Find the Dot Product Of $\mathbf { u }$ And $\mathbf { v }$