高中数学代数与函数一其他练习题104
题目内容

设变量 http://picflow.koolearn.com/upload/papers/20140823/20140823150557741187.gif, http://picflow.koolearn.com/upload/papers/20140823/20140823150557757193.gif满足约束条件: http://picflow.koolearn.com/upload/papers/20140823/20140823150557835799.gif 则 http://picflow.koolearn.com/upload/papers/20140823/20140823150557850399.gif的最大值为(  )

2021-07-16

A.15

B.http://picflow.koolearn.com/upload/papers/20140823/20140823150557913202.gif

C.21

D.http://picflow.koolearn.com/upload/papers/20140823/20140823150557944221.gif

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