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Lim(X趋向0)(tanx-sinx)/x怎么解?
人气:287 ℃ 时间:2019-12-25 09:24:27
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
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