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Math Help - Intergration homework

  1. #1
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    Intergration homework

    \int \frac {1} {xlnx} dx

    I tried doing it with substitution, parts, but neither would work.
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  2. #2
    Super Member malaygoel's Avatar
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    Quote Originally Posted by tttcomrader
    \int \frac {1} {xlnx} dx

    I tried doing it with substitution, parts, but neither would work.
    Substitute lnx =t.
    You you will get the answer lnt + c which in equivalent to ln(lnx) + c.
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  3. #3
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    Ha, I was thinking about doing that, but I was thinking too hard. I keep thinking I could not seperate \frac {1}{xlnx} into \frac {1}{x} and \frac {1}{lnx}
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