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A={x|x≥k},B={x|
<1},若A⊆B,则实数k的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98efc18ba76bfa079b1a4bbbbdb18661.png)
A.(1,+∞) | B.(﹣∞,﹣1) | C.(2,+∞) | D.[2,+∞) |
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2015-06-29更新
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523次组卷
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2卷引用:河北省枣强中学2017-2018学年高一上学期第一次月考数学试题