Question

Rewrite with only sin(x) and cos(x)
sin(2x) - cos(2x)

Answer 1

do you know how to use the double angle identities?

Answer 2

yeah

Answer 3

so sin 2x will become 2 sin x cos x

Answer 4

and cos 2x will become 1-2 sin^2 x

Answer 5

now you have:

2 sin x cos x -1-2 sin^2 x

Answer 6

Alright thanks. I got that. I just wanted to make sure it was correct.