Question

(cos Θ − cos Θ)2 + (cos Θ + cos Θ)2

1) sin2 Θ
2) 4cos2 Θ
3) 8
4) cos2 Θ

I am supposed to simplify the formula but this one is way too confusing for me.

Answer 1

I accidentally posted the formula twice. Whoops.

Answer 2

it makes no sense at all sorry

Answer 3

Yeah I am really confused. All the question is giving me is (cos Θ − cos Θ)^2 + (cos Θ + cos Θ)^2. I assume it wants me to simplify to find one of the answers.

Answer 4

Help?

Answer 5

8

Answer 6

How did you get that?

Answer 7

@masonjames0515baker

Answer 8

take cos 0 =cos 0^2 =8 simple math and I looked it up to make sure

Answer 9

Okay thank you! Once I submit it and if it's right I will give you a medal. :)

Answer 10

no prob

Answer 11

@masonjames0515baker It was wrong :/