1 . 定义运算
,若集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf4adf53fdee471fc2bbbc717b95887.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb6c75a90fbbd6cce4e28001b44e356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca717c6a55e786238e64f7ebd69b9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf4adf53fdee471fc2bbbc717b95887.png)
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2024-01-22更新
|
479次组卷
|
4卷引用:四川省内江市第六中学2023-2024学年高一下学期开学考试数学试题
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解题方法
2 . 已知集合
,若
,则实数a的值可以是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faf19150cfc768b8430c9ee5db9f40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
A.![]() | B.![]() | C.0 | D.![]() |
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2024·全国·模拟预测
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3 . 已知集合
,
,则集合
的真子集个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc03ec3d78487844b44cd273efc9188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32119bdfd6da3e8f08f9018c2d5af363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.8 | B.16 | C.31 | D.63 |
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4 . 解不等式组
并把解集在数轴上表示出来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0052df8b5a924df8e327c60b76f8a11.png)
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5 . 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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6 . 设函数
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c563b30e0b214a3f2996e6c4c1d5ccf.png)
(1)证明:
.
(2)当
时,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82978e25c21f5153ffe233a2720880c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c563b30e0b214a3f2996e6c4c1d5ccf.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d648d3fa1544e9de76c9d0ff3b021a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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2023-08-16更新
|
533次组卷
|
3卷引用:黑龙江省哈尔滨市第九中学校2024届高三上学期开学考试数学试题
黑龙江省哈尔滨市第九中学校2024届高三上学期开学考试数学试题黑龙江省哈尔滨市第九中学校2023-2024学年高三上学期开学考试数学试题(已下线)第一章 集合与常用逻辑用语(单元测试)(能力卷)--高一数学同步精品课堂(人教B版2019必修第一册)
7 . 若集合
,集合
,则集合
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca717c6a55e786238e64f7ebd69b9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd7b5a93b7309b2423a0a70897f24f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-08-13更新
|
1424次组卷
|
5卷引用:贵州省2024届高三上学期入学考试数学试题
贵州省2024届高三上学期入学考试数学试题(已下线)1.3集合的基本运算-高一数学同步精品课堂(北师大版2019必修第一册)广东省广州市真光中学2024届高三上学期9月月考数学试题(已下线)1.3集合的基本运算【第一课】(已下线)1.3集合的基本运算【第一课】1
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解题方法
8 . (1)设集合
,若
,求实数
的值;
(2)设
,求关于
与
的二元一次方程组
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441906b397e2d2ed389abf234ff9dd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44ef606f4c60db51a5861800b8696e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e14bf86eb31a52b6c9c19aaf714d3af.png)
您最近一年使用:0次
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解题方法
9 . 若
,则下列结论中正确结论的个数为( )
①
;
②
;
③若
,则
;
④若
且
,则
;
⑤存在
且
,满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca1a8a058dbb0d68a9f0e1942f55ed5.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab63507bfedb4cfc46ca1da16ccaca03.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd60d5a1f2d29ca0840590923a8ee91.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da05710c58b9dc4a843cc96f3144a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b6c695a165035ba95b82470801f9327.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da05710c58b9dc4a843cc96f3144a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1b87613e5700880384c5a3e3112c2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4b30ac77436082a08dcc16bbffd490.png)
⑤存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b2e9a769561ffd610653116df3e6ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea4693107b88ceb95c9e0c3d5df7b59.png)
A.2 | B.3 | C.4 | D.5 |
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10 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daab7de2f6879c9a2036a44aefef21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
您最近一年使用:0次