1 . 已知实数x,y满足约束条件
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3198ca39eb73acefb2e51c9d1c4b4018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f278c74bbf702ae00a1c275f148ded9.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
解题方法
2 . 曲线
上存在点
满足约束条件
则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/220ba5263187a05fb1214ceb6add307e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 若实数
,
满足
,则
的最小值为( )
![](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/27097fb48ab1c6a45f22ff207696f096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124d508eb5ed2499da7fede9d3418bd.png)
A.-2 | B.0 | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知变量
满足约束条件
,则
的最大值为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa160da41899cfb9d840e9ff1e4c0828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ac038893c30b75a8290739f290c871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7c99486743e17633d086d868f0680c.png)
您最近一年使用:0次