已知x,y满足约束条件
,若
的最大值为4,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d26bcc22793ed4acebf51fe432ab4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa79c2c101deb8595d3b296ad2b73d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
更新时间:2023-05-25 21:29:45
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填空题-单空题
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较易
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解题方法
【推荐1】若实数
,
满足约束条件
,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c468fe39b88224aa3a079936fe7dcea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfeb8b0075f7dcfc571034c2a849e98.png)
您最近一年使用:0次
填空题-单空题
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较易
(0.85)
名校
解题方法
【推荐2】设
满足约束条件
则
的最小值是______________ .
![](https://img.xkw.com/dksih/QBM/2021/12/7/2867482266484736/2868305525104640/STEM/0eb43aa166b84c8589e91f75e727cef9.png?resizew=28)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2626c2c7134fbe76c9f6a97c039f064b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e6432c4298302f8b7da4869761adc7.png)
您最近一年使用:0次
填空题-双空题
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较易
(0.85)
【推荐1】若x,y满足约束条件
,则目标函数
的最小值为_____ ;若目标函数z=ax+2y仅在点(1,0)处取得最小值,则a的取值范围是_ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e810f884213d88af316098fd760078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687ba6bc249bb34ac06c50b58709b5d8.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
解题方法
【推荐2】设
,其中实数
满足
,若
的最大值为12,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35859c60d83e81747b44806950be1aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a585593f886779d0a5befc793f83ee4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次