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lim x趋向于0 (tanx-sinx)/x
人气:413 ℃ 时间:2020-01-06 00:43:54
解答
lim x->0 (tanx-sinx)/x
=lim x->0 (1/cosx-1)sinx/x
=lim x->0 (1/cosx-1)
=1-1
=0cos0=1吧1/cos0=1/1=1
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