名校
1 . 已知集合
,
,若集合A,B中至少有一个非空集合,实数a的取值范围_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5007e8ecb707726a053fa286ed40e6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26c1977dfa1a13137dc87cc50dfe56d.png)
您最近一年使用:0次
名校
解题方法
2 . 已知全集
,集合
,
,若
,则实数m的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ccaf2fb1174d9314c3e9b07846059c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9613151c931d11bbbc00d3227b1d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5ae6759a0c1a568985e48cade1dc60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
您最近一年使用:0次
解题方法
3 . 集合
(
,
、
),定义
为
的长度.已知数集
,
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d90e1cb9c48e827ffd008a93a8c2f2.png)
,则
的长度的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2715553bc7a9851713385cb7e2ba2891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56eee45baf8ec905a2f0fb79d482ed68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962047bded3e19998f143a08970b78e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e214a9aa95c12c71e334d5de4b9f0fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d90e1cb9c48e827ffd008a93a8c2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091a572ae2662aadd5f66a2442d28f10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
4 . 已知集合
,
,
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975f579159d9e8ade04e84c4da7f6b8a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a88afbaf64427ea5b15b74b68da2643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dba47ae2cf43f6578a6f5bbf0c9a75c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9b14d12df5e6c626f34a70023517b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975f579159d9e8ade04e84c4da7f6b8a.png)
您最近一年使用:0次
名校
5 . 设集合
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634753671bbd53905a915efdbd6877ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33322a38db186c5e4aef021751a95b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a614b556bfdb4920bb2a5a25d365598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
您最近一年使用:0次
19-20高一·全国·课后作业
名校
6 . 设全集
,集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a863609db145712303a66e9820398a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e95c181c8ad1c90252646e9e107957d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2020-03-07更新
|
52次组卷
|
3卷引用:专题23初升高衔接总结测试2020年初升高数学无忧衔接(沪教版)
(已下线)专题23初升高衔接总结测试2020年初升高数学无忧衔接(沪教版)上海市川沙中学2016-2017学年高一(平行班)上学期期中数学试题沪教版(2020) 必修第一册 堂堂清 第一章 1.1(5)集合初步
名校
解题方法
7 . 设全集
,集合
,
,则a=___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a49b07f19b0246b11fecee9cadf36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5f6caa2650de77bc4ad88d403bf238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24d705ace5fc6adac3d18952e8b58e8.png)
您最近一年使用:0次
名校
8 . 已知两个关于x的一元二次方程
,
中至少有一个方程有实数根,则实数a的取值集合为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b63a6f10a106f627b4ee87d63f85e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d222c142b62c7efd87211da64b646a04.png)
您最近一年使用:0次
名校
9 . 设集合
,
,
,则图中阴影部分表示的集合是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa4f59a3fd052f229e79e5aefa517913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed0081de4e04574dd0884c4e6077fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a7147daacbc2f8b2671af8a17e6d470.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/bbd1da63-2a9b-44f1-bd0f-ea947c5355d1.png?resizew=145)
您最近一年使用:0次
2019高三·全国·专题练习
10 . 设全集U={1,2,3,4,5,6},且U的子集可表示由0,1组成的6位字符串,如:{2,4}表示的是自左向右的第2个字符为1,第4个字符为1,其余字符均为0的6位字符串010100,并规定空集表示的字符串为000000.
(1)若M={2,3,6},则∁UM表示的6位字符串为________ ;
(2)已知A={1,3},B⊆U,若集合A∪B表示的字符串为101001,则满足条件的集合B的个数是________ .
(1)若M={2,3,6},则∁UM表示的6位字符串为
(2)已知A={1,3},B⊆U,若集合A∪B表示的字符串为101001,则满足条件的集合B的个数是
您最近一年使用:0次