求limx->0 x-sinx/x的三次方
人气:117 ℃ 时间:2020-02-05 16:00:17
解答
lim(x->0)(x-sin x)/x^3=lim(x->0)(1-cos x)/3x^2=lim(x->0)(x^2/2)/3x^2=1/6
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