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/20140823/201408232344546631770.png时,由 http://picflow.koolearn.com/upload/papers/20140823/20140823234454694412.png的假设到证明 http://picflow.koolearn.com/upload/papers/20140823/20140823234454709466.png时,等式左边应添加的式子是(   )

2021-07-12

A.http://picflow.koolearn.com/upload/papers/20140823/20140823234454741653.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823234454756595.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823234454772518.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823234454787925.png

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