1 . 已知不等式
的解集为
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f48e1c656aace41360467f254e359d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知集合
,
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf555063c1800f0822886394a8554490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950f1b34642a7f0d86dbce2262298003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-09-01更新
|
536次组卷
|
6卷引用:广东省梅州市大埔县虎山中学2024届高三上学期第二次段考(10月)数学试题
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3 . 已知函数
(a,
).
(1)
的解集为
或
,求实数a,b的值;
(2)
时,求
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a0c1d7dc8eb9ba9c80babef4068691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d165b3397aab477869842a16b7ff6aa.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b646876d031cb9f139defa2bb2d6eeba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0ed049a7c2651fca0ce6a2e7feabd2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d00e896ece0bec6845cdf25235bcbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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4 . 设
.
(1)若命题“对任意实数x,
”为真命题,求实数a的取值范围.
(2)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8162ad27aa5287501afe6b0510be0066.png)
(1)若命题“对任意实数x,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e674bf3f00e008ef510c783fcfa18219.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8feaeeda100cc23ddd87ff970b8a4c25.png)
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2023高一上·全国·专题练习
5 . 解关于
的不等式
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fddb6be8fbc4766b6fc9aa131926cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
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6 . 已知关于x的不等式
的解集为
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b1afe7cffba62c8b7237817d1cbf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72656c882b2830eeb8053ec18c0088f.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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2023-10-08更新
|
1186次组卷
|
6卷引用:广东省梅州市蕉岭县三校2023-2024学年高一上学期10月联考数学试题
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7 . 已知二次函数
,
(1)设函数
在
范围内的最大值为
,最小值为
,且
,求实数
的取值范围;
(2)已知关于
的方程
在
范围内有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0278629a8d2b6a78d5ec923c54283ae5.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0278629a8d2b6a78d5ec923c54283ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95842ad442c7f6d5ec4b32939b929e63.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/7940a88f26537682b1dfece5b1f5c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2962169da4451b80d7f72379a0e8661c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966d9dd819cba29980da3700422c2497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-09-21更新
|
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3卷引用:广东省梅州市大埔县大埔县虎山中学2023-2024学年高一上学期开学考试数学试题
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解题方法
8 . 已知
,
.
(1)若
,求
的取值;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffabf0dbdeb8518fe6fad342b9f0a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c64b59e12792d6b2654cc8a4a77e213.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e43d049930577cc9a7e0db5803daf2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c44b84cc8f1441a77200548e940d3424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-06-21更新
|
146次组卷
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2卷引用:广东省梅州市兴宁市2022-2023学年高一下学期期中联考数学试题
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解题方法
10 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ca1988e09b999435db5967c88f8ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ecca2cc86a83b153e999ddbfc47553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-04-13更新
|
2733次组卷
|
8卷引用:广东省梅州市梅江区梅州中学2023届高三冲刺热身数学试题