利用等价无穷小替换,求极限!(1)limx-0 sin(x^n)/(sinx)^m(2)limx-0 (tanx-sinx)/x^3
问题描述:
利用等价无穷小替换,求极限!
(1)
limx-0 sin(x^n)/(sinx)^m
(2)
limx-0 (tanx-sinx)/x^3
答
limx^n/x^m=0 n>m
=1 n=m
=∞ n