解题方法
1 . 若不等式
对任意
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84350efe23561a521c00b9591553af78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 设全集
,集合
,
.
(1)求
;
(2)若集合
,满足
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba4f1baabfa25071856d0ef5096e8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4a14151c730fcacdb2f9d4418caf95.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db265773aaa855915ed0b8d3f66a70a.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eed54335a4bd9c88db5b253fc33c44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1044cd14484db33772a038bdd4fe3373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知函数
,且
.
(1)判断函数
在
上的单调性,并用定义法证明;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc4c4b2f9ad3b247ce628ddf56d53b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d725486a2a2861424dfb442856b13d6e.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeaa326d5d801481a7e309d8355fc54b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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4 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da10193c04e74e40664db5db0ebdb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5464d059e5707903609ee01ab232b38.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2231a2cda7d6f519cc88a1d07fc1c1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-01-20更新
|
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2卷引用:青海省西宁市大通县2024届高三上学期期末数学(理)试题
名校
6 . 已知函数
.
(1)若
的值域为
,求
的取值范围;
(2)设
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d0865a9c3cfe1bee472c0b59cfd3a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1098f029d656bae0f5c742d364bbe1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebb4d562f56378b1c95ee5572964f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-01-11更新
|
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5卷引用:青海省海北州2023-2024学年高一上学期期末联考数学试题
青海省海北州2023-2024学年高一上学期期末联考数学试题四川省雅安市雅安中学2023-2024学年高一上学期1月月考数学试题甘肃省陇南市2023-2024学年高一上学期期末检测数学试题(已下线)专题06 一轮复习指数函数,对数函数,幂函数--高二期末考点大串讲(人教A版2019)吉林省部分名校2023-2024学年高一上学期期末联合考试数学试题
7 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78522b33fb20ab3941ea936ffdd3c4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edabb94ec120dfbc8294651cb4a8ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-18更新
|
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5卷引用:青海省西宁市大通县2024届高三第二次模拟考试数学(文)试题
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8 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76db4d90e33a446bd3e233fbfb93fe84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec723e07be1cb67c90355967d0af3e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-09-29更新
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9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76cf40aeb870f36ff93934ffdf59cb5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a84fd2a24aaf702c8303274ebeb5fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-09-02更新
|
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