解题方法
1 . 已知集合
,命题“
,
”是真命题.
(1)求实数a的取值集合B;
(2)在(1)的条件下,若“
”是“
”的充分不必要条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072a6e93dd175e18c417f46ee9fea29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3314b9a80bcd9a780431282a7179c1.png)
(1)求实数a的取值集合B;
(2)在(1)的条件下,若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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2 . 已知实数集
满足条件:若
,则
,则集合
中所有元素的乘积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c3e3323c13b1ddc0e0869a6a6e6056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cb8c0d3ebcc499d8e0d4f564f19492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.1 | B.![]() | C.![]() | D.与![]() |
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解题方法
3 . 设全集,集合
,
,则
( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
4 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da2b355c1533ecc94ca912eee5b0b21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee20f04dc61a6bd16e3f7f338a65868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
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解题方法
6 . 已知
,集合
,
.
(1)若
,求
;
(2)若“
”是“
”的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3cbe0e66f91954f02b91dd70e7a4f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97657d2f5d3c313bb612addd773cb4e0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeec5a1f1bb49c8270e206fa892f372.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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2024-02-17更新
|
444次组卷
|
4卷引用:安徽省马鞍山市劲松学校2023-2024学年高一下学期开学考试数学试题
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7 . 已知集合
,则
的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14eec7b4501994fdf740e52a1fbcb2e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.1 | B.2 | C.3 | D.4 |
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8 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46cbbdfa83876a85288759fb7f80c2d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-09-13更新
|
153次组卷
|
2卷引用:安徽省皖江名校2023-2024学年高二上学期开学联考数学试题
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解题方法
9 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1193fb5babd14b3c7c3f917325f795b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3411f6c4fbde37e47c2e212c7fcc94.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 已知集合
,
,则集合
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6e6405e2ecdfca6d442c5dc1c2f86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee819ff83f31b629da5e8c6880fafa7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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