Integrate 1/(x^2-1) dx?

Question: I get stuck here after factoring x^2 – 1 ∫(1/(x + 1)(x – 1) dx 1/(x + 1)(x – 1) = A/(x+1) + B/(x -1) 1 = A(x – 1) + B(x+1) 1 = Ax – A + Bx + B 1 = -A + B A + 1 = b So what do […] PR News Crimovies