Question

Evaluate the expression: v ⋅ w.
Given the vectors: r = <5, -5, -2>; v = <2, -8, -8>; w = <-2, 6, -5>

Answer 1

Dot product?
So we just multiply the corresponding components of each vector together, then add everything up.\[\Large\bf\sf v\cdot w=2(-2)+(-8)6+(-8)(-5)\]

Answer 2

So I multiplied the first thing in v with the first thing in w. Second with second...
Understand what's going on? :o

Answer 3

yes

Answer 4

All hail dot product.

Answer 5

I got -12

Answer 6

Yay good job \c:/

Answer 7

Thank you!(: