高中数学代数与函数一其他练习题2
题目内容

用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/201408232121493121130.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823212149359520.png)时,从“ http://picflow.koolearn.com/upload/papers/20140823/20140823212149375412.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823212149593466.png”左边需增乘的代数式为(  )

2021-07-12

A.http://picflow.koolearn.com/upload/papers/20140823/20140823212149812442.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823212149827562.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823212149843540.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823212149968580.png

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