问题描述:
设数列{an}满足:an+1=an^2-nan+1,n=1,2,3,…当a1≥3时,证明对所有的n≥1,有(1)an≥n+2,(2)1/(1+a
设数列{an}满足:an+1=an^2-nan+1,n=1,2,3,…当a1≥3时,证明对所有
的n≥1,有(1)an≥n+2,(2)1/(1+a1)+1/(1+a2)+1/(1+a3)+……+1/(1+an)≤1/2
问题解答:
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