高中数学代数与函数一其他练习题5
题目内容

http://picflow.koolearn.com/upload/papers/g02/20120313/20120313101818447987.gif的展开式中第三项的系数是

2021-07-12

A.http://picflow.koolearn.com/upload/papers/g02/20120313/20120313101818453900.gif

B.http://picflow.koolearn.com/upload/papers/g02/20120313/20120313101818471917.gif

C.15

D.http://picflow.koolearn.com/upload/papers/g02/20120313/20120313101818478899.gif

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