名校
1 . 满足
且
的集合
的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200fcb99644e16e56fde7a73270c2beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ed6d8f472d280d240d4ebe4e913e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.1 | B.2 | C.3 | D.4 |
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名校
2 . 已知集合
,
,若
中有且仅有一个元素,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188791535098a44dcdea38cd18d79ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd272c554d81d4002e450e7de98b9de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
3 . 已知集合
,
,若
中恰有两个元素,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae3d31c2d06bad7415b969aa8132e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b17b81ce472e5c53394a244a13dfc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f83e15449c38bc65d34435f5998ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.1 | C.![]() | D.![]() ![]() |
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解题方法
5 . 已知集合
,若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76d262f3b882a1ccc23c8d7f3db4af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 已知关于
的方程
有实根,集合
.
(1)求
的取值集合
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b542af9ef6c8548424fbcc52cf99fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86e09bdda8e5d8ff00c1fb6cca942e5.png)
(1)求
![](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/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
7 . 已知集合
,
,若
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96e4ea1e4067d2c0ca5cdb2083bd8ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e926315208b5da83041affd12718420a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 已知集合
,
,
.
(1)设
,
,若
为真,求
的取值范围;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0183f30df065782963279b30dc2343dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89a3da96c1a4383a64e75d73a3a87b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a107d95e272945481f64f375447b635.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc11e9183ffccd297df4a1c18618bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218c5309e534904dc6bf768074965239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07241606934d6c75cf04455979d0e1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
9 . 已知集合
,集合
.
(1)若
,求实数m的取值范围;
(2)命题
,命题
,若p是q成立的充分不必要条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a8b497c4e00272d7f837f1c2efce8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c00251f590c15760b10d336e899607.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
(2)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc11e9183ffccd297df4a1c18618bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218c5309e534904dc6bf768074965239.png)
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10 . 设集合
,
,集合
中恰好含有2个元素,则实数a的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242f4155094dc3a11c179a89f99a37aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76524d0be3374b3b940214f618875a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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