43.6k views
2 votes
Rewrite with only sin x and cos x.

cos 3x


cos x - 4 cos x sin2x

-sin3x + 2 sin x cos x

-sin2x + 2 sin x cos x

2 sin2x cos x - 2 sin x cos x

User Perfect
by
7.7k points

1 Answer

6 votes
this may help you, check the attached file
Rewrite with only sin x and cos x. cos 3x cos x - 4 cos x sin2x -sin3x + 2 sin x cos-example-1
User Wilsotc
by
8.1k points