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

Answer 1

sin(2x) = 2sinxcosx

cos(2x) = cos²x - sin²x

sin(2x) - cos(2x) = 2 sinx cosx - (cos²x - sin²x)

sin(2x) - cos(2x) = 2 sinx cosx -cos²x + sin²x