Question

Consider the following.
u = ‹2, 2›, v = ‹1, 9›

(a) Find u · v.
u · v =


(b) Find the angle between u and v to the nearest degree.
θ = °

Answer 1

Dot product

u=<2,2> dot v=<1,9>

you do u1v1+u2v2= a number

Answer 2

use dot product concept

Answer 3

I suppose I am correct.