Question

Solve: (cos Θ − cos Θ)^2 + (cos Θ + cos Θ)^2

Answer 1

(cos theta-cos theta)^2=0 ?

Answer 2

I would have thought the expression needs to equal something in order to solve it

if you want to simplify it

think of the problem as

(x - x)^2 + (x + 2)^2

for me its

0^2 + (2x)^2

Answer 3

then just finish it

Answer 4

I don't know; I've never seen this before the answer choices are funky too..

Answer 5

sin^2 theta
4cos^2 theta
8
cos^2 theta

Answer 6

ok... so are you happy that

(cos@ - cos@)^2 = 0

Answer 7

the answer was 4cos^2 theta

Answer 8

it is

Answer 9

ya