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/20140824/201408240124430761506.png,第二步证明“从 http://picflow.koolearn.com/upload/papers/20140824/20140824012443092312.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824012443108375.png”,左端增加的项数是(   )

2021-07-12

A.http://picflow.koolearn.com/upload/papers/20140824/20140824012443123206.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824012443139291.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824012443154389.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824012443154489.png

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