Question

simplify

Answer 1

@amistre64

Answer 2

I have no idea- I'm sorry

Answer 3

Is this something you are supposed to simplify? Because solving implies there should be an equals sign.

Answer 4

I dont know that all they put. So I guess simplify..

Answer 5

What a poorly worded question from your instructor :(

Some help :
\( \cos \theta + \cos \theta = 2 \cos \theta \)
So:
\((2 \cos \theta )^2 = 2^2 \cos^2 \theta=4 \cos^2 \theta\)

Answer 6

oh ok it is a simplification.. :)

Well you have the same thing on both sides of the " + "
so you need to add those terms together

Answer 7

Do I add cos Θ to both sides or.. I'm so confused, sorry.

Answer 8

\((\cos \theta + \cos \theta)^2 \\
= (2 \cos \theta)^2 \\
= 4 \cos ^2\theta \)

Answer 9

Is there another step after that? xD

Answer 10

Thats not an answer choice. ;,/

Answer 11

you have that expression twice... you have to add them up

Answer 12

Do it's D right?

Answer 13

(cos Θ + cos Θ)^2 + (cos Θ + cos Θ)^2

you have "(cos Θ + cos Θ)^2" and you have it again..

Answer 14

\(4 \cos^2 \theta + 4 \cos^2 \theta = ?\)

Answer 15

you can just think of \(\cos ^2 \theta \) like "\(x\)"

Answer 16

yes

Answer 17

yay, ok. thank you can you help me with another?

Answer 18

ok