已知数列{an}的前n项和为Sn,且Sn=2n2+n,n∈N*,数列{bn}满足 发布时间:2017-05-03 09:21 │ 来源:www.tikuol.com 题型:解答题 问题: 已知数列{an}的前n项和为Sn,且Sn=2n2+n,n∈N*,数列{bn}满足an=4log2bn+3,n∈N*.(1)求an,bn;(2)求数列{an?bn}的前n项和Tn.
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