Evaluating ∫₀¹ ln(1+x)/(1+x²) dx

[Rats_N_Cats]

Homework Statement

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

Homework Equations

The various "standard integrals".

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.

 

[dirk_mec1]

 

[Rats_N_Cats]

Okay, I got that. Thanks.
I knew of the identity, but didn't know I'd have to use it after making a substitution.