Question

Evaluate the expression:

v ⋅ w

Given the vectors:

r = <8, 8, -6>; v = <3, -8, -3>; w = <-4, -2, -6>

Answer 1

Dot products? :D
They're the easier product.
You just multiply corresponding components, and then add them.
For example, r⋅v.
r⋅v = <8,8,-6> ⋅ <3,-8,-3>

= 8⋅3 + 8⋅-8 + -6⋅-3
= 24 - 64 + 18
= -22

:)
Try v⋅w now :D

Answer 2

= 3⋅-4 + -8⋅-2 + -3⋅-6
= -12 +16 + 18
= 22 ??