解题方法
1 . 给定区域
:
,令点集
,
,
是
在
上取得最大值或最小值的点
,则
中的点共确定不同的直线的条数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3cb13e319fde00a5edd1a1af4c4682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c361d414fe712f31a04a711bdfdb59a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2175ffc61080dd016e805b16827af8ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 设
,
满足约束条件
,则
的最大值为( )
![](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/2fc427a56f9b9e95886e8e5567aeabef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4489516aca67a6afe53fac2f1477f76.png)
A.3 | B.4 | C.5 | D.6 |
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解题方法
3 . 变量
满足约束条件
,则目标函数
的最大值是________ ,最小值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59d8fcfeb64eef68451f591ff9167c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ada1ae41df107063dab0cd0d48dabb4.png)
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解题方法
4 . 已知实数
满足
则
的最大值是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6231a0652c44bd1b61d9ceb39ce278c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
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5 . 若实数
满足约束条件
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf1a2886806339822cfe60bbb4d0296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7c99486743e17633d086d868f0680c.png)
A.0 | B.4 | C.8 | D.12 |
您最近一年使用:0次
2021-03-05更新
|
580次组卷
|
4卷引用:浙江省2020年7月普通高中学业水平考试数学试题
解题方法
6 . 若变量
、
满足约束条件
,则
的最大值为________ .
![](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/3f07ca20f5f21931c8dcbb50d1e5e94e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4489516aca67a6afe53fac2f1477f76.png)
您最近一年使用:0次
名校
解题方法
7 . 若实数x,y满足不等式组
,则
的最小值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b90855c694700065941c364e01fc5c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fc838e1477179b36ca7481ee2cc1e8.png)
A.3 | B.![]() | C.0 | D.![]() |
您最近一年使用:0次
2020-03-14更新
|
324次组卷
|
3卷引用:浙江省2019年6月普通高中学业水平考试数学试题1
8 . 不等式组
,表示的平面区域面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed059b7173376032a6c4cbc4d9c54bbe.png)
A.16 | B.8 | C.6 | D.4 |
您最近一年使用:0次
解题方法
9 . 设实数
,
满足
,则
的最大值为( )
![](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/f39ec2051125cefa185183c3297eafd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-03-17更新
|
213次组卷
|
2卷引用:2018年6月浙江省高中学业水平考试数学试题
10 . 设实数
,
满足
,则
的最大值为( )
![](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/a1cf9735c58848c634f744018896dcb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次