分部积分 :
∫ln(1-x)dx
=-∫ln(1-x)d(1-x)
=-[(1-x)ln(1-x)-∫(1-x)dln(1-x)]
=-[(1-x)ln(1-x)-∫(1-x)*1/(1-x) * d(1-x)]
=-[(1-x)ln(1-x)+x]
=-x-(1-x)ln(1-x)+C
=-x+(x-1)ln(1-x)+C
分部积分 :
∫ln(1-x)dx
=-∫ln(1-x)d(1-x)
=-[(1-x)ln(1-x)-∫(1-x)dln(1-x)]
=-[(1-x)ln(1-x)-∫(1-x)*1/(1-x) * d(1-x)]
=-[(1-x)ln(1-x)+x]
=-x-(1-x)ln(1-x)+C
=-x+(x-1)ln(1-x)+C