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x趋向0 lim [ ln (1-x) / (e ^ x-1 ) ]
人气:356 ℃ 时间:2020-03-13 23:19:16
解答
x趋向0 lim [ ln (1-x) / (e ^ x-1 ) ]
=lim(x趋向0)(-x)/x
=-1
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