问题标题:
求极限im(1/sinx-1/x)x->0
问题描述:
求极限im(1/sinx-1/x)x->0
李向宁回答:
im(1/sinx-1/x
=lim1/sinx-lim1/x
=lim(1/x)/[(simx)/x]-lim(1/x)/(x/x)
=lim(1/x)/1-lim(1/x)/1
=0
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