lim (x趋向于0) sin(sinx)/x
人气：157 ℃ 时间：2020-02-06 00:35:09
解答
由lim(sinx/x)=1得
原式
=lim(sin(sinx)/sinx*sinx/x)
=lim(sin(sinx)/sinx)*lim(sinx/x)
=1
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