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1 . 已知关于x的不等式
的解集为
,
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf0dab0fa4abb3b1214a592a29a00d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e72e85b53ed7377d0389047cebb1ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ce56de71d883c9cdee96b3ae3c7f27.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-10-17更新
|
863次组卷
|
7卷引用:陕西省西安市陕西师大附中2023-2024学年高一上学期期中数学试题
名校
2 . 设集合
,集合
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4a6235aec9d875cc7f5a2b686cc2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff05cc3b43f36568728a1ec867c0b9f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab1a2a037d65d7ddda126c9bb71400b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.2 | D.4 |
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3 . 不等式
的解集为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2be6aeb4d7816240d5ea7dbf5207933.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 已知关于x的不等式
的解集是
,其中
,则下列结论
①
;②
;③
;④
.
正确的有__________ .(填上所有正确的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eaceb060128b297563ec2e51278e191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f803a468e5d66004e57372a5bf2c5e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a7ce24c5952d0bcf3217323f7176d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106b94dd51af3f0a697614835e4f2ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763752656df7d5d0291c0500c6feb873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbc2b1bab43073170d7f6abeb64099b.png)
正确的有
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5 . 已知命题p:实数x满足
,命题q:实数x满足
.
(1)若
,且p假q真,求实数x的取值范围;
(2)若q是p的必要不充分条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d7045e85c8a3f9dac146525f174b08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c4c6ca3b37ca4db8bc64b62d8d82f9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)若q是p的必要不充分条件,求实数a的取值范围.
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解题方法
6 . 若关于x的不等式
在
内有解,则实数a的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5dc044536332a1bff9b4c54be851f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6ad6387d592102a743742620eee7fe.png)
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解题方法
7 . 若集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883b87484185898272eb4971a68c448c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3525fdf4b49ac4e31db91a5de0aebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 设关于x的不等式
的解集为A,其中
.
(1)当
,且
时,求实数a的值;
(2)当
,且
时,求集合A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3081a6c91be4aa7ccc87c7f45eb32c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82986ab38a4ae58593191ccae2a44f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc5910ccfc3383f434115a0155fbb38.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de289c49c9faa901c5e87ef8a54a5a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151dd48d7f77e2ede0420f28d3dbf252.png)
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9 . 下列命题正确的是( )
A.命题“若![]() ![]() ![]() ![]() |
B.命题“![]() ![]() ![]() ![]() |
C.若“![]() ![]() ![]() ![]() |
D.“![]() ![]() |
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10 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983bfbc012814b746c019bab826120d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f75ee0afa8fc289cce82d02850dc8a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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