高中数学代数与函数一其他练习题119
题目内容

当点 M( http://picflow.koolearn.com/upload/papers/20140823/20140823145601726329.gif)在如图所示的三角形 ABC内(含边界)运动时,目标函数 http://picflow.koolearn.com/upload/papers/20140823/20140823145601742403.gif 取得最大值的一个最优解为(1,2),则实数 k的取值范围是(  ) http://picflow.koolearn.com/upload/papers/20140823/20140823145601758774.gif

2021-07-19

A.http://picflow.koolearn.com/upload/papers/20140823/20140823145601773547.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823145601789264.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823145601820564.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823145601836272.gif

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