设
满足约束条件
,则
取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f616688b9a66b7eea488037a0c0d5f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f701ceb525abc74d98352483e92a8046.png)
A.![]() | B.![]() | C.![]() | D.![]() |
2013·河北保定·二模 查看更多[2]
更新时间:2016-12-02 06:38:06
|
【知识点】 求分式型目标函数的最值解读
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】设变量
,
满足约束条件
,则
的最大值与最小值的和是( )
![](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/9cff2bd878b3da1957fd645f13ad6bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a9a4b8b456d983b740c83149dc9c45.png)
A.3 | B.5 | C.6 | D.7 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知变量
,
满足约束条件
,则目标函数
的取值范围是( )
![](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/068b767f795caa077f04efc35d6c1e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9faa5bb38047a22b66a7b6942a01d0ff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次