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若数列{an}满足:,其前n项和为Sn,则S4-4a4=A.-14B.-15C.-16D....
试题详情
若数列{a
n}满足:
,其前n项和为S
n,则S
4-4a
4=( )
A.-14
B.-15
C.-16
D.-17
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