高中数学代数与函数一其他练习题2
题目内容

用数学归纳法证明等式 http://picflow.koolearn.com/upload/papers/20140824/20140824015200096948.png时,第一步验证 http://picflow.koolearn.com/upload/papers/20140824/20140824015200112350.png时,左边应取的项是

2021-07-12

A.1

B.http://picflow.koolearn.com/upload/papers/20140824/20140824015200128331.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824015200143440.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824015200159458.png

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