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极限练习题lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)]
人气:229 ℃ 时间:2020-02-04 23:11:36
解答
lim(n->∞)[(n^2+3n-8)/(4n^2+2n+3)] =lim(n->∞)[(1+3(1/n)-8(1/n^2))/(4+2(1/n)+3(1/n^2))] =1/4
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