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已知数列{an}的前n项和Sn=2n2(n∈N*),等比数列{bn}满足:a1=b1,b2...
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已知数列{a
n}的前n项和Sn=2n
2(n∈N
*),等比数列{b
n}满足:a
1=b
1,b
2(a
3-a
2)=b
1(a
n-a
n-2)(n≥3).
(1)求{a
n}及{b
n}的通项公式;
(2)设c
n=
,求数列{c
n}的前n项和T
n.
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已知数列{an}的前n项和Sn=2n2(n∈N*),等比数列{bn}满足:a1=b1,b2(a3-a2)=b1(an-an-2)(n≥3).
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