Question

(cos Θ − cos Θ)2 + (cos Θ + cos Θ)2

Answer 1

sin2 Θ
4cos2 Θ
8
cos2 Θ

Answer 2

Try foiling out each one and then simplifying.

Answer 3

Please help!!

Answer 4

(cos Θ − cos Θ)^2

This is basically saying

(x - x)^2

can you simplify this much at least? :)

Answer 5

so what can you simplify (cos Θ − cos Θ)^2 to?

Answer 6

cos^2
@TheSmartOne

Answer 7

So would it be cos^2 D? @TheSmartOne

Answer 8

Or would it be 4cos^2 because of the 2 in front of the parenthesis

Answer 9

No,

If you have one apple and you give it away, how many apples do you have?

Answer 10

None @TheSmartOne

Answer 11

yes, you nailed it

this was the property you were supposed to use

\((ab)^m = a^m b^m\)

Answer 12

Thank you so much! So just to be sure it is 4cos^2? @TheSmartOne

Answer 13

Im giving you a medal :)

Answer 14

Correct :)