Question

Evaluate the expression.

r = <7, -3, -7>, v = <4, 6, -5>, w = <-5, -6, -3>

v ⋅ w

Answer 1

@phi

Answer 2

@satellite73

Answer 3

that is a "dot product"

multiply corresponding components, and add up

Answer 4

see http://tutorial.math.lamar.edu/Classes/CalcII/DotProduct.aspx

Answer 5

I get that i just dont get it will I come out to three answers in a bracket or just one answer?

Answer 6

if you multiply corresponding components you will get 3 products
then you add them up to get one number

you get a "scalar" (a single number)