Homework Help: Calculus (Urgent Help)

Posted by JADE on Thursday, October 25, 2012 at 2:59pm.

The graph of y=cos x * ln cos^2x has seven horizontal tangent lines on the interval [0,2pi]. Find the x-coordinate of all points at which these tangent lines occur.

Calculus (Urgent Help) - Reiny, Thursday, October 25, 2012 at 6:24pm
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