Question

Rewrite with only sin x and cos x.

sin 2x - cos 2x

Answer 1

- 2 sin^2(x)+sin 2x - 1

Answer 2

How did you get that?

Answer 3

cos 2x=cos^2(x) - sin^2(x) = 2 cos^2(x) - 1 = 1 - 2 sin^2(x)

Answer 4

A. 2 sinx cosx - 1 + 2 sin2x

B. 2 sin x cos2x - 1 + 2 sin2x

C. 2 sin x cos2x - sin x + 1 - 2 sin2x

D. 2 sin x cos2x - 1 - 2 sin2x

These are my chocies and I don't know If your wrong or not

Answer 5

sin2x=2sinx.cosx cos2x=cos^2x-sin^2x
sin2x-cos2x= 2sinx.cosx-cos^2x+sin^2x

Answer 6

a

Answer 7

right

Answer 8

cos^2x=1-sin^2x convert it

Answer 9

Thank you