12-13高一上·河北衡水·阶段练习
1 . 设关于
的不等式
的解集为
,不等式
的解集为
.
(1)当
时,求集合
;
(2)若
,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/01fe5cf5327d423c99f5475697199fbb.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/10a94484d7eb4b6aaeb0d57446876ca6.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/e906f329d08a459688996e1a3120bfd3.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/c5db53c5a15c4c86b8bd4d26f7c94a55.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/7567bdead3724b918584d308392b62b3.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/8a78a7cce5d64c149beeda24a2bb0e3a.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/e906f329d08a459688996e1a3120bfd3.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/4d243448f7384260bbbcedaf8f3b5727.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/855d262b96b347e4a55fb8a15d6be2f1.png)
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2 . 已知集合
,
,
,若
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2477b80474dd255b3c12525ca15476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac17da9dea45fe9969aa2b6046ef7f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9251cd25d736388ea664e83b41c9a58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9fc64b15361e794a34ca5107807516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知集合
,集合
,则
与
的关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dafabc60652dfdb212f29cd65b82068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d999f26990f9bc4c46ae1afd0d215fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
4 . 已知全集
,集合
,
,并且
,那么
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691fac45cdae1433b24d689b8f2bfc3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64623f3d0e2c90cfc79f77c40b564061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade3418ed280603a2c6c991bb264b807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6ac6a242e865af6be9f2416f2737fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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