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lim x趋近于0 (sinx+tan3x)/2x的极限值
人气:474 ℃ 时间:2020-02-03 06:37:24
解答
sinx is the same infinitesimal as x.
tan3x is the same infinitesimal as 3x.
Therefore,lim (sinx+tan3x)/2x = 4x/2x = 2
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