高中数学代数与函数一数列106
题目内容

在数列 http://picflow.koolearn.com/upload/papers/20140824/20140824022112401415.png中， http://picflow.koolearn.com/upload/papers/20140824/20140824022112401557.png，前n项和 http://picflow.koolearn.com/upload/papers/20140824/20140824022112416886.png，其中a、b、c为常数，则 http://picflow.koolearn.com/upload/papers/20140824/20140824022112447451.png（  ）

2021-09-28

A.http://picflow.koolearn.com/upload/papers/20140824/20140824022112463280.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824022112479238.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824022112494274.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824022112510304.png

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