名校
解题方法
1 . 已知函数
的定义域为
,值域为
.若
,则称
为“
型函数”;若
,则称
为“
型函数”.
(1)设
,
,试判断
是“
型函数”还是“
型函数”;
(2)设
,
,若
既是“
型函数”又是“
型函数”,求实数
的值;
(3)设
,
,若
为“
型函数”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb185cecf0a22b322a82545bdfcb321c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11e685edd2226794e07c27f60acec2c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80177489d687f891f9f3fc5f8860001d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616f54a98965940ed871b64e55331a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af07d272da54872ad5a5d2c8181760af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c69b465c78a4f15e22ec963e8d6655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b84f0063e7e2829fd6169b06ce05f3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d141acf95bdc962ad042e694243670c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
您最近一年使用:0次
名校
解题方法
2 . 如图所示的平面区域(阴影部分)由一个半圆和两个全等的直角三角形组成(含边界),若点
是该区域内任意一点,
,则z的最小值为__________ ,z的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee51b0cac927e6445e4b94438c2ff3da.png)
![](https://img.xkw.com/dksih/QBM/2022/3/7/2931198018387968/2932300590456832/STEM/17b27726-f920-47a5-94a7-3bbbaf2d612d.png?resizew=162)
您最近一年使用:0次
2022-03-09更新
|
481次组卷
|
5卷引用:河南省名校联盟2021-2022学年高三下学期3月大联考理科数学试题
解题方法
3 . 某民宿拟将面积为
的房子隔成
个大房间,
个小房间.其中每间大房间面积为
,住宿费400元/天,每间小房间面积为
,住宿费300元/天.装修每间大房间需要3万元,装修每间小房间需要2万元.若只有25万元用于装修,且游客能住满客房,则获得最大收益时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
____________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4304c0d52540bba0131acb8fd7c49a0f.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/d3a5429f6ade39116fc3ac69f199b113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0d2fc279da590a219b3cf21824bc22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
您最近一年使用:0次