Hi
How exactly do I integrate t^2/(t^4+1) without using partial fractions (cause that looks soooo complicated)?
PS I got that after using the t method trying to integrate 1/((cosx)^2+1)
$\displaystyle \int{\frac{t^2}{t^4 + 1}\,dt}$
http://www.wolframalpha.com/input/?i=integral[%28x^2%29%2F%28x^4+%2B+1%29]
Click "Show Steps".