Question

Please help me with my precal

Evaluate the expression:

v ⋅ w

Given the vectors:

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

Answer 1

just apply dot product rule. I do the first term for you as example, you do the rest. ok?

Answer 2

v.w =6* -(7) + second term times to each other + third term times to each other = -42 +..+,,

Answer 3

oh ok, so its -42+35-6?

Answer 4

Didnt think it was that simple haha

Answer 5

yes, it is that simple and the answer is -13 :)