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October 21, 2014

October 21, 2014

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

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

Is this right? Thanks.

- Cos-Derivative -
**Damon**, Thursday, March 14, 2013 at 1:16pmyes

- Cos-Derivative -
**Mark**, Thursday, March 14, 2013 at 1:27pmThanks!

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