问题描述:
等差数列{an}中,a1=1,前n项和为Sn,公差为d,若S2,S3-S1,S5-S3成等比数列
数列{bn}满足bn=1/(an*an+1),Tn为{bn}的前n项和,(1)求an,Tn
(2)n属于N*,kTn
数列{bn}满足bn=1/(an*an+1),Tn为{bn}的前n项和,(1)求an,Tn
(2)n属于N*,kTn
问题解答:
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