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数学
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求极限LIM(X趋向0)tanx-sinx/x3次方,
人气:325 ℃ 时间:2019-09-13 20:57:50
解答
LIM(X趋向0)tanx-sinx/x3次方
=lim(x->0)tanx(1-cosx)/x³
=lim(x->0)(x·x²/2)/x³
=1/2
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