高中数学代数与函数一其他练习题107
题目内容

已知约束条件 http://picflow.koolearn.com/upload/papers/20140823/201408232228571931382.png若目标函数 http://picflow.koolearn.com/upload/papers/20140823/20140823222857271757.png恰好在点(2,2)处取得最大值,则 http://picflow.koolearn.com/upload/papers/20140823/20140823222857442289.png 的取值范围为( )

2021-07-19

A.http://picflow.koolearn.com/upload/papers/20140823/20140823222857458550.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823222857598476.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823222857629459.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823222857661563.png

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