求lim(x->0)(1+3(tan^2)x)^((cot^2)x)

问题描述:

求lim(x->0)(1+3(tan^2)x)^((cot^2)x)

lim(x->0)(1+3(tan^2)x)^((cot^2)x)
=lim(x->0)[(1+3(tan^2)x)^(1/(3((tan^2)x)]^3
=e^3