求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,

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求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,答:∫{

求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,
求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,

求积分∫(x^4+1)/x^2(x-1)dx,请朋友说下过程吧,

答:
∫{(x^4+1)/[(x-1)x^2]}dx
=∫[x^2/(x-1)]dx+∫{1/[(x-1)x^2]}dx
=∫[(x-1+1)^2/(x-1)]dx+∫[1/(x-1)]dx-∫[(x+1)/x^2]dx
=∫[x+1+1/(x-1)]dx+∫[1/(x-1)]d(x-1)-∫(1/x+1/x^2)dx
=(1/2)x^2+x+2*ln|x-1|-ln|x|+1/x+C
=(1/2)x^2+x+1/x+ln|(x-1)^2/x|+C