Saturday
May 23, 2015

Homework Help: Cos-Derivative

Posted by Mark on Thursday, March 14, 2013 at 12:49pm.

y= (cos^3 x) (cos 3x)

I got -3 sin(3x) cos^3x - 3 sin(x) cos (3x) cos^2 (x) using the product rule

Is this right? Thanks.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Members