Question

angle between v=(-7,8) w=(1,0)

Answer 1

i don't get how you find v1 and v2

Answer 2

Are those vectors

Answer 3

yes

Answer 4

i use v1*v2 right? but how do i get v1 and v2

Answer 5

Use
\[A • B=|A||B|\cos \theta\]

Answer 6

what are A and B the sum of the vectors? the product of the vectors?

Answer 7

\[\cos \theta=\frac{A•B}{|A||B|} \]