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January 29, 2015

January 29, 2015

Posted by **Anonymous** on Sunday, March 30, 2008 at 10:53pm.

I understand that you can take the natural logarithm of both sides and then take the derivative but why can't I simply take the derivative of it and get.. dy/dx = x(cos(x))(sin(x))^(x-1).

Thanks in advance :).

- Calculus -
**Original poster**, Sunday, March 30, 2008 at 11:23pmOh that was silly >.>.. I can't apply the power rule since it doesn't have a constant exponent. So is the only way to differentiate this equation is to use the natural logarithm and then the power + chain rule?

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