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(理科)已知数列{an}的前n项和Sn满足.(1)求数列{an}的通项公式;(2)记,若数...
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(理科)已知数列{a
n}的前n项和S
n满足
.
(1)求数列{a
n}的通项公式;
(2)记
,若数列{b
n}为等比数列,求a的值;
(3)在满足(2)的条件下,记
,设数列{C
n}的前n项和为T
n,求证:
.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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(理科)已知数列{an}的前n项和Sn满足.
(1)求数列{an}的通项公式;
(2)记,若数列{bn}为等比数列,求a的值;
(3)在满足(2)的条件下,记,设数列{Cn}的前n项和为Tn,求证:.
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