Question

Evaluate the expression:

v ⋅ w

Given the vectors:

r = <8, 1, -6>; v = <6, 7, -3>; w = <-7, 5, 2>

Answer 1

@billj5 I can't figure out how to set it up

Answer 2

hint: dot product \(\bf <a,b,c>\cdot <d,e,f>\implies (a\cdot d)+(b\cdot e)+(c\cdot f)\)

Answer 3

v=6i+7j-3k
w=-7i+5j+2k
\[v.w=(6i+7j-3k).(-7i+5j+2k)=6(-7)+7(5)-3(2)=?\]