1 . 若对任意
,均有
,就称集合
是伙伴关系集合.设集合
,则
的所有非空子集中,具有伙伴关系的集合的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd77104cc745d1e0e262122da34482d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d4e38579ea67163d79c00f3f4aef0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.15 | B.16 | C.32 | D.128 |
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2 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177c0020e9e079f69ad6f977c3efa523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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名校
解题方法
3 . 集合
,若A中元素至多有1个,则a的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de0371b58ca7f3bf0a21440c656894c.png)
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2024-02-20更新
|
865次组卷
|
2卷引用:江苏省南通市如皋市2024届高三上学期1月诊断测试数学试题
解题方法
4 . 已知集合
,若
,则a的值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cd7f58d36d9e56af4d39b667438519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f675eefeacfddb5098894bbe2fcd0f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024高一上·全国·专题练习
解题方法
5 . 若集合中的三个元素分别为
,则元素
应满足的条件是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6807572db504210876561d0eb39b5f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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6 . 已知集合
只有一个元素,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6692d2c12d148d8328dbb8809772af7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1或0 | B.0 | C.1 | D.1或2 |
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7 . 数集
,
,
,若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd1847cae62189ef22fe7d512200705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65038fdcf3ffb162a15b4d0dab65dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33506b43f2d07e9b003a6b21c631a38d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2317480af8719266bb92ee59d6b2c3b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c97ee473c0a6e3d9158a7b8cbc1171d.png)
A.![]() | B.![]() | C.![]() | D.A,![]() ![]() |
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2024高一上·全国·专题练习
名校
8 . 已知集合
,
,且
,
,则下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ba542be66c79a71dee5cfeeb5df87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504c477e74fa4b2df8d210c1431dc280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcc342b78b8c829d22ef5325354abed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331c8707c02438a8988be6fd54089ae5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知集合
,集合
中所含元素的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca717c6a55e786238e64f7ebd69b9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fae6d7b4b69bfb93140d2d7abfe241a.png)
A.2 | B.4 | C.6 | D.8 |
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10 . 集合
用列举法表示为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf16235a7b028934e9022b4a2658dc82.png)
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