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Difficult Integral

  1. Dec 18, 2009 #1
    1. The problem statement, all variables and given/known data

    I'm stuck with this definite integral : [tex]\int_0^1\frac{ln(1+x)}{1+x^{2}} dx[/tex]

    2. Relevant equations

    The various "standard integrals".

    3. The attempt at a solution

    I just don't know where to start, or how to do it. I tried various substitutions but none of them worked; I also tired doing it by parts but that didn't work either.
     
    Last edited: Dec 18, 2009
  2. jcsd
  3. Dec 18, 2009 #2
  4. Dec 18, 2009 #3
    Okay, I got that. Thanks.
    I knew of the identity, but didn't know I'd have to use it after making a substitution.
     
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