∫(1 + (sin x)^2)^(1/2) dx ∫1 / (1 - x^2) dx

问题描述:

∫(1 + (sin x)^2)^(1/2) dx ∫1 / (1 - x^2) dx

∫1 / (1 - x^2) dx =(1/2) ∫[1/ (1 - x)+1/(1+x) ]dx =(1/2)ln[(1+x)/(1-x)]+C