名校
1 . 已知集合
,
,
.
(1)求
;
(2)若“
”是“
”的必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4dcc6c7f893e34fc914cbd5c57dd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57556eb63fa8e72da4e44b8f9ef29174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8834e23263d35075e619675474a384.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551fd8cd8ea61d794c13074ccd7d6c4e.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-11-30更新
|
256次组卷
|
4卷引用:安徽省马鞍山市第二十二中学2020-2021学年高一上学期期中数学试题
名校
解题方法
2 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c39e6748df32447c744191c2b7d3eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cacb0ed50ee4c499107c3d7c47d40e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 对于集合
,
,若一个集合为另一个集合的子集时,则称这两个集合
,
之间构成“全食”;当集合
,且互不为对方子集时,则称集合
、
之间构成“偏食”.对于集合
,
,若集合
,
构成“全食”或构成“偏食”,则
的取值集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ba67ef712204235bdf93a9d96f2ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11697fe8385f4f04057b65826e8057e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-11-15更新
|
420次组卷
|
7卷引用:江苏省徐州市六县2020-2021学年高一上学期期中联考数学试题
江苏省徐州市六县2020-2021学年高一上学期期中联考数学试题江苏省徐州市丰县中学2020-2021学年高一上学期期中数学试题江苏省徐州市2020-2021学年高一上学期期中数学试题安徽省阜阳市第一中学2021-2022学年高一上学期第一次月考数学试题(已下线)1.2 集合间的基本关系-【优质课堂】2021-2022学年高一数学同步课时优练测(人教A版2019必修第一册)山东省济宁市第一中学2021-2022学年高一上学期期中数学试题江苏省苏州市常熟外国语学校2023-2024学年高一上学期10月月考数学试题
名校
4 . 设集合
,
,若
,则
元素的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8b275419e14e7fa9ea1b29b1280fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f33e84a4b228c40053c1036d6c88d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
A.15 | B.16 | C.17 | D.18 |
您最近一年使用:0次
2020-11-14更新
|
153次组卷
|
3卷引用:安徽省阜阳市太和中学2020-2021学年高一上学期第一次教学质量检测数学试题
名校
5 . 设数集
由实数构成,且满足:若
(
且
),则
.
(1)若
,试证明
中还有另外两个元素;
(2)集合
是否为双元素集合,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74137fa46f6f3208f5924cb1b8c66b08.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed961de27af72b7d11887ccfb6f15071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2020-11-14更新
|
469次组卷
|
6卷引用:安徽省阜阳市太和中学2020-2021学年高一上学期第一次教学质量检测数学试题
安徽省阜阳市太和中学2020-2021学年高一上学期第一次教学质量检测数学试题(已下线)第01讲 集合的概念(考点讲解+分层训练)-2021-2022学年高一数学考点专项训练(人教A版2019必修第一册)(已下线)第01讲 集合的概念(教师版)-【帮课堂】2021-2022学年高一数学学同步精品讲义(人教A版2019必修第一册)河南省叶县高级中学2022-2023学年高一上学期第二次月考数学试题(已下线)1.1 集合的概念及其表示(重难点题型突破)-【冲刺满分】山西省朔州市怀仁市第一中学校2023-2024学年高一上学期9月月考数学试题
名校
6 . 已知
,
,若
,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dde1c4986c75fc5b22283984ae6ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c88a8aaa8558fe86877048546dcda2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
7 . 全集
,集合
,集合
.
(1)若
,且集合
满足:
,
,求出所有这样的集合
;
(2)集合
、
是否能满足
?若能,求实数
的取值范围;若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4109d960f63945b71452e843dbb6aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a622a123066beeaed91553d3fd0c7e9c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff13eedd09ef0b2c964c555e939c86e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419a928e9b84a808cb20feb77bc09463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca0ce54011a1d02f0eaf81b07bb85c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8453c241bf93fec8a2e34d81ce543bc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
解题方法
8 . 设集合
,
,若
,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2cb2728bd56c76caf8ba5e0fbd22ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5df1050a9ed91dea4615070df4d3ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849d022e90e4a3bc2b477673f7a71f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6d9e9e68d8fa416188fe9c5efafae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ae5723f50b1044263b37c57858abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知集合
,
或
,则下图中阴影部分所表示的集合为( )
![](https://img.xkw.com/dksih/QBM/2020/11/7/2588054244679680/2592877909032960/STEM/8ca278e305af44ae83e1fdc7d536b790.png?resizew=182)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0eaf33b1f7a66a3f4ae55a7d765cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abe55c7db59cf639fb13f3c342b3555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8127c7545384c2d91fe17cc8c7fc4a.png)
![](https://img.xkw.com/dksih/QBM/2020/11/7/2588054244679680/2592877909032960/STEM/8ca278e305af44ae83e1fdc7d536b790.png?resizew=182)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次