名校
解题方法
1 . 已知集合
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e850b90a525f962caa66d0b3b02218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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名校
解题方法
2 .
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9eed74e70d233af27c70bc454e7889f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5940351e3244357175e134d118bcb019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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3 . 设A,B为两个非空有限集合,定义
其中
表示集合S的元素个数.某学校甲、乙、丙、丁四名同学从思想政治、历史、地理、物理、化学、生物这6门高中学业水平等级性考试科目中自主选择3门参加考试,设这四名同学的选考科目组成的集合分别为
,
,
,
.已知
{物理,化学,生物},
{地理,物理,化学},
{思想政治,历史,地理},给出下列四个结论:
①若
,则
{思想政治,历史,生物};
②若
,则
{地理,物理,化学};
③若
{思想政治,物理,生物},则
;
④若
,则
{思想政治,地理,化学}.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069ec439d599e7989e74f4c4ac91d65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911cdb689ca80557ce076cb49b3ee498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3dabace330ccdd9755fbcf32d5d6343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b625192d7398634a02ea24fa78ed87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef354e5c5ff828cc8d27c71badd40f98.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10b9f228c9a255aca3ace899db760d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9b4f81050636eac5b4f064fa0f06313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41bbaf9ee8f16ee2ab343dc164a8e48.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231bca548a6ffe3013474743e1b5d039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
解题方法
4 . 设集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d3552fb0c503724992127cad99ea83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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5 . 记不超过x的最大整数为
,若集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ef9665654c618812d35f99535549d.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe65fd88f6f84c855b9f564d50eebc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ef9665654c618812d35f99535549d.png)
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6 . 设集合
为函数
的单调递减区间,集合
,则“
”是“
”的___________ 条件(填“充分不必要”或“必要不充分”或“充要”或“既不充分也不必要”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e1a8cdd79b87078117e2e5e143416a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca539014bd8a719962d62faea29acab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8fcd67ce3fe0d542daebbc5753bd5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94af2a91d5767a133b06dbc355988de.png)
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7 . 设为不大于
的最大整数,集合
,
,则
等于
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2024高一下·全国·专题练习
8 . 设集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbfb2845c4dde3d812502f7b1b89acca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac16bf3d51ab5a74353f2cf568b417e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
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名校
9 . 设集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a489dd889965a683cf60558521b53dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab71e67780b999e0942f63a41a83c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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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/9f146ec56628ed9e1fc34b6157733cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fde91bd6a132a87ddf429c0616df2fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
您最近一年使用:0次