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已知数列{an}的前n项和为Sn,对一切正整数n,点(Sn,n)都在函数f(x)=log2...
试题详情
已知数列{a
n}的前n项和为S
n,对一切正整数n,点(S
n,n)都在函数f(x)=log
2(x+4)-2的图象上.
(I)求数列{a
n}的通项公式;
(II)设
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HG7pifaOaxM4RK3YmwkcdsnpBgUOXSv2lgKHXXK6QYFD14q9pcBhl5xuUODQteJsqRegsM4x7+3I
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/8Dhswk6N70JnE44HN0EDofKnTYETqdwHN1+T5J0jtIHADkAAAAASUVORK5CYII=
)
,求数列{b
n}的前n项的和T
n.
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