# How do I integrate this integral?

I want to compute $$\int \frac{1+x^2}{1-x^2} dx$$

I am not sure how to do this one. I need some suggestions please. By the way, I need to integrate this for homework.

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Have you tried something, what are some of the known techniques you posses? –  Jean-Sébastien Oct 14 '12 at 0:31
I multiplied it by its conjugate, but that just makes it more complicated. –  Jaden Q Oct 14 '12 at 0:33
Note that "plz" is not a real word in English, but rather a short for "Platz" in German, I believe. Try to stick to actual words next time. –  Asaf Karagila Oct 14 '12 at 0:34