lim(x→0) (1+tanx)^cotx

问题描述:

lim(x→0) (1+tanx)^cotx

lim(x→0) (1+tanx)^cotx
=lim(x→0) (1+tanx)^(1/tanx)
=e
还是lim(x→∞) (1+1/x)^x=e的应用 x-->0时,tanx-->0