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“当n 为正奇数时, http://picflow.koolearn.com/upload/papers/20140823/20140823145558216380.gif能被 http://picflow.koolearn.com/upload/papers/20140823/20140823145558232342.gif整除”,在第二步时,正确的证法是(     )

2021-07-12

A.假设http://picflow.koolearn.com/upload/papers/20140823/20140823145558263512.gif,证明http://picflow.koolearn.com/upload/papers/20140823/20140823145558279390.gif命题成立

B.假设http://picflow.koolearn.com/upload/papers/20140823/20140823145558294584.gif,证明http://picflow.koolearn.com/upload/papers/20140823/20140823145558279390.gif命题成立

C.假设http://picflow.koolearn.com/upload/papers/20140823/20140823145558326572.gif,证明http://picflow.koolearn.com/upload/papers/20140823/20140823145558279390.gif命题成立

D.假设http://picflow.koolearn.com/upload/papers/20140823/20140823145558294584.gif,证明http://picflow.koolearn.com/upload/papers/20140823/20140823145558357391.gif命题成立

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