Question

Evaluate the expression:

v ⋅ w

Given the vectors:

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

Answer 1

v dot w would just be <3*-4, -8*-2, -3*-6>.
Definition of dot product: In three dimensions if v = (v1, v2, v3) and u = (u1, u2, u3), the dot product.( http://www.algebralab.org/lessons/lesson.aspx?file=Trigonometry_TrigVectorDotProd.xml )

Answer 2

would the answer be 22?

Answer 3

@geoffxiao