解题方法
1 . 已知
,且满足不等式组
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facb614b80fe55a92062092617eff633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570900eb5f1cf4ec0cb934aca6891df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ea614559b4ad922c275408102e7abe.png)
A.![]() | B.0 | C.![]() | D.![]() |
您最近一年使用:0次
2 . 若实数x,y满足不等式组
且目标函数
的最大值为6,则实数a的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6162f29d42d9e10639f1f90060bf9dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d87a32ac4bcdf2a3ad67c7c8bdd3f67.png)
A.4 | B.1或3 | C.2 | D.2或4 |
您最近一年使用:0次
解题方法
3 . 已知
、
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/27dec6e023e39cabea6954a5b0c8a6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfeb8b0075f7dcfc571034c2a849e98.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-09-05更新
|
86次组卷
|
2卷引用:云南省春季学期2020-2021学年高一期末数学试题
4 . 已知
,
,则
的取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120b6dab105ef5caf08a9fffeb8d6e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5701268cf597662d1e784ab120e4f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e6432c4298302f8b7da4869761adc7.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
,实数
,
满足
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2393c33de34b47a04178053cf381e7c4.png)
![](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/b6b11b2091a368e119e6388f2d6c91cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e50084808613915e826668e277e861.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 在直角坐标系xOy中,O为坐标原点,点M的横、纵坐标分别为茎叶图中的中位数和众数,若点N(x,y)的坐标满足
求
的最大值.___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a39ab17dc1a1815d27eb000b79ab32cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297bc912cb09546db07e4fb6be67af40.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/c7392a37-32a3-49d8-80b4-1becc5159186.png?resizew=89)
您最近一年使用:0次
2021-08-24更新
|
93次组卷
|
2卷引用:江西科技学院附属中学2020-2021学年高一下学期期末数学(理)试题
名校
解题方法
7 . 已知实数:
,
满足不等式组
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/29313de2b06439cbfafd81fc3182340b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfeb8b0075f7dcfc571034c2a849e98.png)
A.34 | B.10 | C.6 | D.4 |
您最近一年使用:0次
2021-08-06更新
|
207次组卷
|
4卷引用:江西省抚州市2020-2021学年高一下学期期末数学(文)试题(B卷)
名校
解题方法
8 . 已知实数
,
满足
则
的最大值是___________ .
![](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/3f2db3a0c76069442f539000433fdaf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f8481c483bb605f505414fde3c6a8d.png)
您最近一年使用:0次
2021-08-06更新
|
227次组卷
|
3卷引用:四川省达州市2020-2021学年高一下学期期末数学(文)试题
解题方法
9 . 如图,在矩形
中,
,
,
为
的中点,若
是该矩形内(含边界)任意一点,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c37cb57db83fb57e6a0d3a0afa1127.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/e490839f-d24d-453e-b7a9-46f038484462.png?resizew=169)
您最近一年使用:0次
10 . 已知点
在不等式组
所表示的平面区域内运动,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf392898bd96d65a896e32c5f6e6c35a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9f9405faaea4758a2135224372fad5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次