名校
解题方法
1 . 已知集合
,
.
(1)当
时,求
;
(2)若
是
的必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335a5ff978d9fe1a073dd351ac78278d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014d45afc3e5eef6cd47a7b6393e9d73.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
2 . 已知不等式
的解集为
或
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa504a3525899b292b2b53aae50fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a862c5429833e0c4a865639289b5d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18d49782c83ea51587859d3c2bc216d.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() ![]() |
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2023-11-12更新
|
500次组卷
|
7卷引用:广东省河源市龙川县第一中学2023-2024学年高一上学期12月期中考试数学试题
3 . 已知集合
.
(1)若
中只有一个元素,求
的值,并求集合
;
(2)若
中至多有一个元素,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e950ec9e1191cd84b061c71ff8009f5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 下列命题中是真命题的有______ .
①若
,则
;
②若
,
,则
;
③
的解集为
;
④设
,
,且
,则
.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125415eb6733489cdc96ee48eb88aee7.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634d7e7e68878a555f6330b18c002a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241164222e43c45fd5f34e6daa66e092.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2128a00f52af4427721f0ebba591daa.png)
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解题方法
5 . 已知函数
,
.
(1)若函数值
时,其解集为
,求实数
的值;
(2)若关于
的不等式
的解集为空集
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6197c1aa468bec795a0fbcc097cdc792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4c5cfe45ae8adcecba850b127a315b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e3b2fb6d3554a98ce9057ae6010b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
6 . 当
时,关于x的不等式
恒成立,则
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06428bc852eeac1d7b9ff01b82c2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42f9a694f70e44b93f0153b160a618b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
7 . 已知函数
.
(1)若
,求不等式
的解集;
(2)已知
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e652df553ea7d46b1244217018d29f04.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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解题方法
8 . 已知不等式
的解集为
,集合
,集合
.
(1)求b和c的值:
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb56d9418f1a3cb2baa6b0c862010ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e90e4491b77c3dbba0e71329cd596e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6b96a278e2d40ef6fabe9b27b66f8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c2e68b4094a31c81d9ef86b4e38f67.png)
(1)求b和c的值:
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
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9 . 已知函数
的两个零点为
,且
,则下列说法正确的序号为______ .
①
;
②不等式
的解集为
;
③
;
④不等式
的解集为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5278e760a10891673dd97d210c44ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dbfab27ddb33f4de8fa95e480dad0d3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
②不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed773bfab2f8b36b6da3a471c5916ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82df96690a7944ccd98e14c3ffc1a28c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e7ef804eeb23618fbf91ead47587f2.png)
④不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009db35e84f9e2ed847519211918fbfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8f02f880c2dbea33bbb9f376d2cc2b.png)
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10 . 函数
的定义域为
,则实数
的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed92c4990728abb6e47e20d7b60fb9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次