1 . 已知集合
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e58dfc00efaef7f7a8beffc3e6e3266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed961de27af72b7d11887ccfb6f15071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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名校
2 . 已知集合
,则集合
的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66afdd990aa623eebb006138dd92eee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.1 | B.2 | C.3 | D.无穷多个 |
您最近一年使用:0次
2024·江苏连云港·模拟预测
名校
解题方法
3 . 已知集合
,集合
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2feed236cb514eee5a426282155ccf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e01b7bb7893fba53245d10b375c3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2024·全国·模拟预测
解题方法
4 . 已知集合
,若
,则
的值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1568a97be41c0821f1ed0b74d81c6d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1 | B.0 | C.0或1 | D.1或2 |
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5 . 定义集合运算:
,若集合
,
,则集合
中所有元素之和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69541713a669e37fda3813efdde7f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf0d84ae97fdff1102b68376d392e1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9cad0086fcdf91a3f30189c53b4fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e37e656d05244fe3a5769cd1446725.png)
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解题方法
6 . 已知集合
,
,若
中恰有三个元素,则由a的取值组成的集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5274c80d5e1e377eb1c8996af7e3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94ebc059c4951f0ba4dc5862982d8be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 已知集合
,
,则满足
的实数a的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ebe4386be9cea30701c9e1a4c2cbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b45f0d8d0c2fbc06bfbbb042d281559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2024-04-05更新
|
791次组卷
|
3卷引用:华大新高考联盟2024届高三4月教学质量测评文科数学试题(老教材全国卷)
解题方法
8 . 设集合
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2feed236cb514eee5a426282155ccf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf37aa3334ab85b7aef3e2103e33d1c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 若集合
,则
中的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4017060120d80698e2b5e7e28ab9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.4 | B.5 | C.6 | D.7 |
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解题方法
10 . 已知
,则
的取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474173d0934e6f87a7e7d11138210004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.1 | B.1或2 | C.0或2 | D.0或1或2 |
您最近一年使用:0次