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SclayP
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1. So, I have this integral which i'll post in a moment. The thing is that i attempted to resolve the integral by parts and i came up with a solution, but then i looked up in the internet and the way it's resolved it's very very different. I searched it on wolfram and i even have the step by step resolution but i don't know why i can't do it by parts. In Wolfram it's resolved first of all by "simple fractions"??
2.[itex]\int 1/((1+x^2)*(x+1))\,dx[/itex]
3. Well, like i said i tried to resolve it by part choosing 1/(x^2+1) dx like dv and 1/(x+1) like u. The i integrated by part and after all the precidure i came up with the next solution; I=arctg(x)/(x+1)
Please i'd be really happy if you could help me with this. AND SORRY FOR MY ENGLISH
2.[itex]\int 1/((1+x^2)*(x+1))\,dx[/itex]
3. Well, like i said i tried to resolve it by part choosing 1/(x^2+1) dx like dv and 1/(x+1) like u. The i integrated by part and after all the precidure i came up with the next solution; I=arctg(x)/(x+1)
Please i'd be really happy if you could help me with this. AND SORRY FOR MY ENGLISH
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