∫[xarcsinx/(1-x2)3/2]dx
【正确答案】:∫[xarcsinx/(1-x2)3/2]dx =-1/2∫arcsinx(1-x2)-(3/2)d(1-x2) =-1/2∫arcsinxd [-2(1-x2)-(1/2) =∫arcsinxd[1/√(1-x2)] =arcsinxd/√(1-x2)-∫(1/√(1-x2)darcsinx =arcsinx/1/√(1-x2)-∫1/(1-x2)dx =arcsinx/√(1-x2)-(1/2)ln|(1+x)/(1-x)|+C.