12-13高三下·山西太原·阶段练习
1 . 已知关于
的不等式
.
(Ⅰ)当
时,求此不等式的解集;
(Ⅱ)若此不等式的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d1f2614840665ad4c62b51583aa64f.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(Ⅱ)若此不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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12-13高三下·山西太原·阶段练习
解题方法
2 . 已知
为全集,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0d2a6750330ebe1cf1b3a65825d0e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3f46b3055f08f403c2ce4b3c315e53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0d2a6750330ebe1cf1b3a65825d0e6.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() |
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10-11高三上·山西晋中·阶段练习
解题方法
3 . 设全集
则图中阴影部分表示的集合为( )
![](https://img.xkw.com/dksih/QBM/2013/4/25/1571197657440256/1571197662330880/STEM/4cc033db51404d6bbc53d323c5ea56e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d216a106d6ef330d2693d9c2befeb9.png)
![](https://img.xkw.com/dksih/QBM/2013/4/25/1571197657440256/1571197662330880/STEM/4cc033db51404d6bbc53d323c5ea56e2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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12-13高三上·黑龙江哈尔滨·期末
解题方法
4 . 已知集合
,若
,则实数
的取值范围是
![](https://img.xkw.com/dksih/QBM/2013/1/22/1571106167414784/1571106172608512/STEM/85ed7bb2be6343af8bca9ac4d08b7a47.png)
![](https://img.xkw.com/dksih/QBM/2013/1/22/1571106167414784/1571106172608512/STEM/6007ccb4b8f5456a90c43cc7e192f09c.png)
![](https://img.xkw.com/dksih/QBM/2013/1/22/1571106167414784/1571106172608512/STEM/643b062063014e4fbd70009b310e6817.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10-11高三上·山西吕梁·阶段练习
5 . 已知集合
.
(1)当
时,求
;
(2)当
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0cc95ff25aa34dbaf51c0131458bb34.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8489e291d540e36c33cd17b037c1e9cf.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b9ae6c7e296671de0527702af2843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9-10高三上·山西·阶段练习
解题方法
6 . 已知集合
,集合
,
集合![](https://img.xkw.com/dksih/QBM/2010/3/1/1569612680388608/1569612880961536/STEM/5cb5ccec087541e084a524e2a966fefc.png)
(Ⅰ)求
; (Ⅱ)若
,试确定实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6541574f726d66601bbc5314b1a919b4.png)
![](https://img.xkw.com/dksih/QBM/2010/3/1/1569612680388608/1569612880961536/STEM/e43471d9e932454dae5cdc727823e639.png)
集合
![](https://img.xkw.com/dksih/QBM/2010/3/1/1569612680388608/1569612880961536/STEM/5cb5ccec087541e084a524e2a966fefc.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e0811379579aaf2cd2d3df47fad857.png)
![](https://img.xkw.com/dksih/QBM/2010/3/1/1569612680388608/1569612880961536/STEM/45aae8eb70a04f3096ca8f37d82c36c4.png)
![](https://img.xkw.com/dksih/QBM/2010/3/1/1569612680388608/1569612880961536/STEM/af74a1b5207f4023bc46aaf2e989e3cc.png)
您最近一年使用:0次