Question

Prove: sin θ - sin θ�cos2 θ = sin3 θ. You must show all work.
Please help

Answer 1

@am!rah

Answer 2

Not clear what is between sin θ (?????) cos2 θ

Answer 3

i have no clue it was in the question

Answer 4

Can you post a screenshot of the question?

Answer 5

the ¿ symbol was in the question?

Answer 6

sure 1 minute

Answer 7

there ya go

Answer 8

ok that is a typo, end of story. contact whoever you can about that question because it is meaningless
we might be able to guess what they meant if we think about it though...

Answer 9

alright can you help me with one more

Answer 10

sure

Answer 11

how would you transform f(x) = 4 sin(2x - π) + 3 into a cosine function in the form f(x) = a cos(bx - c) + d?

Answer 12

use the fact that\[\sin u=\cos(\frac\pi2-u)\]