∫(e,e^2)lnx/(x-1)^2dx
问题描述:
∫(e,e^2)lnx/(x-1)^2dx
答
∵∫[lnx/(x-1)^2]dx=-∫lnxd[1/(x-1)]=-[1/(x-1)]lnx+∫[1/(x-1)]d(lnx)=-[1/(x-1)]lnx+∫{1/[x(x-1)]}dx=-[1/(x-1)]lnx+∫{[x-(x-1)]/[x(x-1)]}d...