Friday
May 22, 2015

Homework Help: Trig

Posted by Mitchel on Sunday, February 17, 2013 at 11:33pm.

Verify the identity.

cos 4x + cos 2x = 2 - 2 sin^2(2x) - 2 sin^2 x

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Members