What is the derivative of cos(x)^ln(x)? When I plug it into mathematica, I don't know where the answer comes from...
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Originally Posted by soma What is the derivative of cos(x)^ln(x)? When I plug it into mathematica, I don't know where the answer comes from... I would approach this by taking the logarithm of both sides. The use implicit differentiation.
So I get e^((ln(cos(x))/x)-ln(x)tan(x)) But mathematica shows (cos(x)^ln(x))*((ln(cos(x))/x)-ln(x)tan(x)) The difference is I have e^, while mathematica has (cos(x)^ln(x))*
I get:
Oh! don't forget that y=
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