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/20140823/201408232154539791086.png”( http://picflow.koolearn.com/upload/papers/20140823/20140823215453995496.png)时,从“ http://picflow.koolearn.com/upload/papers/20140823/20140823215454010516.png”时,左边的式子之比是(  )

2021-07-12

A.http://picflow.koolearn.com/upload/papers/20140823/20140823215454026468.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823215454041516.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823215454073467.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823215454275589.png

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