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求极限lim(n→∞)[(1/√n^2+1)+(1/√n^2+1)+….(1/√n^2+n)]

题目详情
求极限lim(n→∞)[(1/√n^2+1)+(1/√n^2+1)+….(1/√n^2+n)]
▼优质解答
答案和解析
n/√n^2+n<=(1/√n^2+1)+(1/√n^2+1)+….(1/√n^2+n)<=n/√n^2+1
而n/√n^2+n与n/√n^2+1极限均为1
由夹逼准则知
极限为1