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已知递增等比数列{bn}满足b2•b4=64,b5=32,数列{an}满足.(Ⅰ)求数列{...
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已知递增等比数列{b
n}满足b
2•b
4=64,b
5=32,数列{a
n}满足
.
(Ⅰ)求数列{a
n}的通项公式;
(Ⅱ)设数列{c
n}的通项公式
,求数列{c
n}的前n项和T
n.
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已知递增等比数列{bn}满足b2•b4=64,b5=32,数列{an}满足.
(Ⅰ)求数列{an}的通项公式;
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已知等差数列{an}的前n项和为Sn且满足a2=3,S6=36.
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