Long division help
http://img10.imageshack.us/img10/193/87609ff3edbd403fb906ad2.png

I'm trying to integrate that function. I did long division and got 1 + 1/(x^2-1) which is different from what Wolfram gives me. Can anyone explain what I'm doing wrong?

Question

Long division help
http://img10.imageshack.us/img10/193/87609ff3edbd403fb906ad2.png

I'm trying to integrate that function. I did long division and got 1 + 1/(x^2-1) which is different from what Wolfram gives me. Can anyone explain what I'm doing wrong?

anonymous · Answer

Well after 1/(x^2-1) you still have to decompose it farther, using the factors (x+1)(x-1)

anonymous · Answer

yeah you can but still, i don't see how you could separate the terms

cwrw238 · Answer

yea - use partial fractions method

anonymous · Answer

oh they used partial fraction..lol..
thanks!

anonymous · Answer

Yep, partial fractions, gives A=-1/2, B=1/2, there you go