limx[ln(2x+1)-ln(2x)]=?

分类: 作业答案 • 2021-12-28 11:07:20

问题描述：

答

limx[ln(2x+1)-ln(2x)]
=limx[ln(2x+1)/2x]
=limln[1+1/2x]^x
=limln[1+1/2x]^(2x.1/2)
=limlne^(1/2)
=1/2