名校
解题方法
1 . 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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名校
解题方法
2 . (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)
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3 . 已知集合
,对于它的非空子集
,计算
中的所有元素的和,则对
的所有非空子集,这些和的总和是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15745ac8c69c76311d9431c2b248adbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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4 . 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)
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5 . 集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b79e9e6ea72abf7caa9773701a8d71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1fb97d5d2cc38b6e1c007177ea90d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 若
,
,用列举法表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0f3260e5d600f0af9d9b705697d415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a9918c5056eb486c1131a098331a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
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7 . 已知集合
,
.
(1)用列举法表示集合A;
(2)当
时,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97927627b6890964c516f02dc34ed2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5797d7918aa9438554b611b97423752f.png)
(1)用列举法表示集合A;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc992c9e51d4b22232adf6bb5c8055a.png)
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8 . 已知集合
,则下列表示正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd59603a0b9137dfe8e8ebd7901b6cdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-18更新
|
176次组卷
|
4卷引用:广西玉林市博白县中学2023-2024学年高一上学期开学考试数学试题
9 . 集合
用列举法可表示为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/630764414be58074dcb4c73bdcda5e33.png)
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10 . 已知有限集合
,定义集合
中的元素个数为集合
的“容量”,记为
.若集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aacb0cef0b4732cd149dbf81db44835d.png)
__________ ;若集合
,且
,则正整数
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9e56ab45ddf991ae24983027e04b08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30502b549c09cd1094e061090e64e866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20929ac73a0217b33cd41f6aa86cf29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebc3da55cca67bac55ace85a5f4c556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aacb0cef0b4732cd149dbf81db44835d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0e7c8479f8f57d2b4d29dbab700753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6532556ff662731db6be89bee77a8b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2023-09-19更新
|
294次组卷
|
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