高中数学代数与函数一其他练习题3
题目内容

用数学归纳法证明“ http://picflow.koolearn.com/upload/papers/20140824/201408240555228761393.png时,从“ http://picflow.koolearn.com/upload/papers/20140824/20140824055522892409.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824055522923468.png”时,左边应增添的式子是(    ).

2021-07-12

A.http://picflow.koolearn.com/upload/papers/20140824/20140824055522939442.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824055522970472.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824055522986561.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824055523001586.png

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