Math, asked by Anonymous, 1 month ago

Let y = cos x (cos x − cos 3 x). Then y is​

Answers

Answered by hotshambhu1982
1

Answer:

cos^2 2x

Step-by-step explanation:

cos x ( cos x - cos 3x)

cos^2 x - cos^2 x

-cos^2 2x

Similar questions