1 . 设函数
的定义域为
,集合
,记
.
(1)若
,求
;
(2)若
是
的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4567f7764e1b5428ac7535f568f54226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e002d73750547adb99527f2ae709efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172c80b0d9bcb52d4071f27171819ad.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361048fd1b1a7f3b7230404a04b7155a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
2 . 设集合
.
(1)求集合
.
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db5634663fed35ac06b62aa58cc1b59.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 求关于x的不等式
的解集,其中a是常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09166d88e39dcb91c3e34961ddb09538.png)
您最近一年使用:0次
2023·全国·模拟预测
解题方法
4 . 已知集合
,若集合
中只有一个元素,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3e02d711cc92652034ae03f4ba9dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 解不等式:
(1)
;
(2)若
,解关于x的不等式
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25fd39db86c3a98684c2d36aff566c7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1069475ff1f5d28f9d42ec49de33416f.png)
您最近一年使用:0次
2023-11-15更新
|
603次组卷
|
3卷引用:江西省上高二中2023-2024学年高一上学期第一次月考数学试题
6 . 解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88671d36911bb9f4c583b9a42917c2c.png)
您最近一年使用:0次
解题方法
7 . (1)关于
的不等式
解集是
,求
的值;
(2)两个正实数
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a9dab0cf70bcab18c8948f84c5919a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982a5a66f277a7d581b8398cb2256e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237c851b5bc6374fe055d92c6e79e570.png)
(2)两个正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc5c45e32d7b19f500da9a1f2549f3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
您最近一年使用:0次
名校
8 . 关于
的不等式
的解集可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223a94f2dcd348d96b6730cf45f923a1.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() |
您最近一年使用:0次
2023-10-20更新
|
336次组卷
|
2卷引用:浙江省嘉兴市海盐高级中学2023-2024学年高一上学期10月阶段测数学试题
9 . 若
,则不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef3762bd852ef79d5c594e71f00a1a1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 若
,则关于
的不等式
的解集为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529179ae75ce109e3d3a5b07bf465608.png)
您最近一年使用:0次
2023-10-12更新
|
263次组卷
|
2卷引用:吉林省长春博硕学校2023-2024学年高一上学期第一次阶段性测试数学试题