Question

Rewrite with only sin x and cos x.
cos 2x - sin x

Answer 1

cos(2x) you can use double angle identity

Answer 2

So then I would get cos^2x-sin^2x-sinx?

Answer 3

Yeah.

Answer 4

There you go.

Answer 5

Then what? what do I do from there?

Answer 6

your directions seem to imply that is all you need to do

Answer 7

That it. You rewrote expression in term of sin x and cos x.

Answer 8

Just Kidding, I dont need to do anything else. Thank you soo much for the help!(: