解题方法
1 . 已知
,集合
,
,若
,且
的所有元素和为12,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c24ecf9e59082e563372b12981d03fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751e0e53e1e5e805e35a103373530239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e407074370bd8cad7f2f0bd3d5b36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8f1df735a4480e538fd1d067fbd577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.0 | C.1 | D.2 |
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2 . 集合
用列举法表示为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274d70d3522154a1ee42725914f8a74.png)
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名校
3 . 设集合
,
,则集合
中元素的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923086dd6740b73dd23928e9c8c5350c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af9c95d211cd60cd2ebae50af3e33f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.1 | B.5 | C.6 | D.7 |
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4 . 已知集合
若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bdb56a3df96776fe86c13c9ac38a292.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345fcc0218da13686109f3c5a20547f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bdb56a3df96776fe86c13c9ac38a292.png)
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5 . 若集合
,
,则
的元素的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2460459def18d318773e97f2d0d8c188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366b27d62a31812728f83f6a15b9b70d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.1 | B.2 | C.![]() | D.![]() |
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2023-12-16更新
|
410次组卷
|
2卷引用:福建省德化一中、永安一中、漳平一中三校协作2024届高三上学期12月联考数学试题
名校
6 . 若
,则
= ____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea201a07b64df162de1dc55aa9daab42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794a6cc061a617e27421b53113f128f0.png)
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解题方法
7 . 已知集合
.
(1)若
,求集合B;
(2)若
,求a的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6383bc640e9d22d3fd758bea9cf83aee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a2410ce34b36954ed4923e600d42f5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f30409b155fc4e6841eb8caeb7fcbf.png)
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8 . 下面说法中,正确的为( )
A.![]() ![]() ![]() |
B.![]() |
C.![]() |
D.集合![]() |
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解题方法
9 . 已知集合
,若
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809ff979519c1944a0cdb8aebc12b44c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a2410ce34b36954ed4923e600d42f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.1或![]() | B.1 | C.![]() | D.![]() |
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2023-11-04更新
|
409次组卷
|
3卷引用:重庆市三峡名校联盟2023-2024学年高一上学期数学联考试题
23-24高一上·河北·阶段练习
解题方法
10 . 设
,已知
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c130e4333ab216faaef08814a48eb4c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ffc521281e9158bfdf9b101c772934.png)
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