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Thread: Integration by part Problem

  1. #1
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    Integration by part Problem

    $\displaystyle \int \frac{1}{xln5x} dx$ .
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  2. #2
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    Re: Integration by part Problem

    Substitute $\displaystyle y=\ln{5x}$ and you should get a very familiar integral.

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    Re: Integration by part Problem

    Quote Originally Posted by mastermin346 View Post
    $\displaystyle \int \frac{1}{xln5x} dx$ .

    You don't need parts!

    What is the derivative of $\displaystyle 5ln(ln(5x))~?$
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