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lim 2n^2+n+1/n^2-2n+1
n趋于无穷
人气:241 ℃ 时间:2020-06-21 12:53:01
解答
lim(n->∞)( 2n^2+n+1)/(n^2-2n+1)
=lim(n->∞)( 2+1/n+1/n^2)/(1-2/n+1/n^2)
=2
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