Re: what is integration of 1/(x^2-y^2) dx
I would recommend using the Heaviside cover-up method to accomplish the decomposition, as demonstrated in these topics:
http://www.mathhelpboards.com/f52/living-highers-question-yahoo-answers-concerning-partial-fraction-decomposition-3320/
http://www.mathhelpboards.com/f52/dw123s-question-yahoo-answers-regarding-partial-fraction-decomposition-3644/