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已知m是二项式http://picflow.koolearn.com/upload/papers/g02/20110926/201109261400137181013.gif(a为常数)展开式中有理项的个数,则(http://picflow.koolearn.com/upload/papers/g02/20110926/20110926140013734907.gif-2)m展开式的中间项为

发布时间:2021-07-12

A.-http://picflow.koolearn.com/upload/papers/g02/20110926/20110926140013734908.gif

B.http://picflow.koolearn.com/upload/papers/g02/20110926/20110926140013765908.gif

C.http://picflow.koolearn.com/upload/papers/g02/20110926/20110926140013812912.gif

D.-http://picflow.koolearn.com/upload/papers/g02/20110926/20110926140013828912.gif

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