1 . 已知
满足约束条件
,则
的范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550140ee75c6759c61a7666d07ba2988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6488b9783f8b2583b7da4246a274d4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 已知变量
满足约束条件
则
的最小值为___________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae6df18f85df8ce0c314e3131f18b36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d619bd64bc82301a37251d5701e3cb0.png)
您最近一年使用:0次
3 . 若
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/6b50d849c09b687dd64c816f96f3294c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9d13c65314d7e0a5dcbcc60ddd317b.png)
A.2 | B.![]() | C.3 | D.1 |
您最近一年使用:0次
4 . 已知实数
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/74a0c655fcf1ab0a1b58875ee40320da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc196bbb39ffe5d5ff94b568230ff4c.png)
您最近一年使用:0次
5 . 若
满足不等式组
,则
的最大值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cd910259007a91238b4fcb00549aaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916bb2cc1b29574ff95b47567c59ee0c.png)
A.![]() | B.1 | C.2 | D.3 |
您最近一年使用:0次
6 . 已知点P在直线x+3y-2=0上,点Q在直线x+3y+6=0上,线段PQ的中点为M(x0,y0),且y0<x0+2,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf05e22049aa0a0dc9bb7bb4714a58d.png)
A.[一![]() | B.(一![]() |
C.(一![]() | D.(一∞,一![]() ![]() |
您最近一年使用:0次
2016-12-04更新
|
485次组卷
|
5卷引用:2016届江西省南昌市高三第一次模拟考试理科数学试卷
7 . 已知
满足约束条件
,则
的范围是
![](https://img.xkw.com/dksih/QBM/2016/4/25/1572604676218880/1572604681412608/STEM/93d10942a04144d58f66df06cd4f4318.png)
![](https://img.xkw.com/dksih/QBM/2016/4/25/1572604676218880/1572604681412608/STEM/5e23b5ea4d87452d89cbfaaaf256c739.png)
![](https://img.xkw.com/dksih/QBM/2016/4/25/1572604676218880/1572604681412608/STEM/f09cdd3a30814703aa9b7d0281964ef6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 已知实数
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/316be506b69a350e8e11ba17db15e15a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba89a9c943669aa4553f67f92c0e267.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 若
、
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/7f1652de66b55b1a61d494b08607250f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a65b7c4fe5eed748525829c13d7f14.png)
您最近一年使用:0次
2016-12-04更新
|
580次组卷
|
4卷引用:2015-2016学年河北省正定中学高二上期中数学试卷
10-11高三上·陕西西安·阶段练习
名校
解题方法
10 . 定义在R上的函数
满足
,
为
的导函数,已知函数
的图象如图所示.若两正数
满足
,则
的取值范围是
![](https://img.xkw.com/dksih/QBM/2016/4/12/1572588496084992/1572588501917696/STEM/2deb133970f2446283ccf31bb5a38ffb.png?resizew=119)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150839f7f7bd3a7d7952d2765a786381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a53de2e60c85b2044ed87efc5b76b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7647f81e91f2c0b0cae9810711e721e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d701d16d9f318ee8fa779f5b961d64c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60d12d6e37bcfff822c0cd9ed23fccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://img.xkw.com/dksih/QBM/2016/4/12/1572588496084992/1572588501917696/STEM/2deb133970f2446283ccf31bb5a38ffb.png?resizew=119)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
804次组卷
|
3卷引用:2011届陕西省西安铁一中高三上学期第一次月考理科数学卷
(已下线)2011届陕西省西安铁一中高三上学期第一次月考理科数学卷2015-2016年河南新乡一中高二重点下第二次周练理数学卷四川省成都市蒲江县蒲江中学2020-2021学年高二下学期3月月考数学(文)试题