lim(x->π/2)ln(3+sinx)

分类: 作业答案 • 2021-12-30 13:40:30

问题描述：

答

lim(x->π/2)ln(3+sinx)
=lim(x->π/2)ln(3+sin(π/2))
= lim(x->π/2)ln(3+1)
= 2ln2