为了这里书写方便,我来计算:lim[x→0] x/(e^x-1)
lim[x→0] x/(e^x-1)
令e^x-1=u,则x=ln(1+u)
=lim[u→0] ln(1+u)/u
=lim[u→0] (1/u)ln(1+u)
=lim[u→0] ln[(1+u)^(1/u)]
=lne
=1
希望可以帮到你,如果解决了问题,请点下面的"选为满意回答"按钮.
为了这里书写方便,我来计算:lim[x→0] x/(e^x-1)
lim[x→0] x/(e^x-1)
令e^x-1=u,则x=ln(1+u)
=lim[u→0] ln(1+u)/u
=lim[u→0] (1/u)ln(1+u)
=lim[u→0] ln[(1+u)^(1/u)]
=lne
=1
希望可以帮到你,如果解决了问题,请点下面的"选为满意回答"按钮.