Question

MEDAL SOLVE
(cos Θ − cos Θ)2 + (cos Θ + cos Θ)2

Answer 1

solve what, there is nothing to solve , simplify?

Answer 2

yes

Answer 3

cos(a)-cos(a) = 0

then expand the second part if those are squared power terms

Answer 4

so it is 8

Answer 5

\[0^2 + (\cos(\theta)+\cos(\theta))^2=(\cos(\theta)+\cos(\theta))*(\cos(\theta)+\cos(\theta))\]

Answer 6

expand that by doing the foil distribute thing

Answer 7

4cos^2 theta

Answer 8

is the answer cos^2 theta

Answer 9

umm

Answer 10

yeah 4 cos squared theata