Question

Rewrite with only sin x and cos x.

sin 2x - cos 2x
Answer Choices:
2 sinx cosx - 1 + 2 sin^2x

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

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

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

Answer 1

the first one

Answer 2

All of the answers have either cos2x or sin2x in them

Answer 3

my mistake some are ment to be squared. ill fix that

Answer 4

@sorour is it still the first one now that i've fixed it?

Answer 5

@Ridict ,yes i consider it to be squured

Answer 6

thanx

Answer 7

ur welcom,tanx for a medal