Lim(X趋向0)(tanx-sinx)/x怎么解?
问题描述:
Lim(X趋向0)(tanx-sinx)/x怎么解?
答
Lim(X趋向0)(tanx-sinx)/x
=Lim(X趋向0)(sinx/xcosx-sinx/x)
=1/1-1
=1-1=0