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lim(x趋向于无穷大时)cos{ln[1+(2x-1)/x^2]}
人气：243 ℃ 时间：2020-02-02 08:04:08
解答
x趋向于无穷大时,(2x-1)/x^2=0
所以原式=cos[ln(1+0)]=cos0=1
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