名校
1 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5e1e33c1259195f7bb0198a3e6f65a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd6b0feac2467ca327aa8f3ed4f4987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5e1e33c1259195f7bb0198a3e6f65a.png)
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解题方法
2 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd2b6c2b8ca2bb4d20a36eeb2114501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec890109936bbcf776d126f98f5e1f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-13更新
|
573次组卷
|
3卷引用:河南省济源、洛阳、平顶山、许昌四市联考2024届高三下学期3月第三次质量检测数学试题
解题方法
3 . 已知全集为
,
,
.
(1)求
;
(2)若
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e5937cc862f8e515ec62586b118d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4aa8c99c3599d5c3b2e79b92c5fc479.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a65cb3e005748115ba16103d7114209.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b427839d3db6e7da2721587c945e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2769ff3e792107a67b688fa946f4405f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
4 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0caf2ad981084792c84140865ed8750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-06更新
|
272次组卷
|
2卷引用:河南省新高中创新联盟TOP二十名校2023-2024学年高一上学期1月调研考试数学试题
2023·全国·模拟预测
名校
解题方法
5 . 已知集合
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe827c9c8cd9141dfb121008035d5126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd44f0a71f22479df355966f3adc9f2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764c4b6fc81a781a898d8474ef542016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032abab1f842089aa048aed538ca35a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efcbfbbf2cae208be22c2563f70d67f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c083a6376397cabfde737a8f5b04f59.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-10-26更新
|
786次组卷
|
9卷引用:河南省洛阳市洛宁县第一高级中学2023-2024学年高三上学期11月月考数学试题
名校
解题方法
8 . 已知非空集合
,
,全集
.
(1)当
时,求
;
(2)若
是
成立的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f36b5001e9c63bb84414db45f851a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f10e93675f5c6afde0b4bc8dfbcf56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e5450f24464d07f1a767714fa639cc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
您最近一年使用:0次
2023-10-23更新
|
579次组卷
|
5卷引用:河南省洛阳市第一高级中学2023-2024学年高一上学期期中达标数学测评卷(A卷)
名校
解题方法
9 . 已知全集为
,集合
,
,且
,则实数a的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab97dd16d272b57cd96f61b10338d64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2943426778b4cdaa2049ba75957a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3b9f8292d632874ed0f92bbd8df0a7.png)
您最近一年使用:0次
名校
10 . 若集合A具有①
,
,②若
,则
,且
时,
这两条性质,则称集合A是“好集”.
(1)分别判断集合
,有理数集Q是否是“好集”,并说明理由.
(2)设集合A是“好集”,求证:若
,则
.
(3)对任意的一个“好集”A,判断命题“若
,
,则
”的真假,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2faf3937abcb6a59071c17bc6bb10f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a2410ce34b36954ed4923e600d42f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e13a814f8e081078dcf3788177affcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46de01c5104b9112a688df37eadb000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd77104cc745d1e0e262122da34482d.png)
(1)分别判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9720fd3e90e0f5dedc985310efea84e4.png)
(2)设集合A是“好集”,求证:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e13a814f8e081078dcf3788177affcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957d41dbe52b49c3a7339e3519a3fe84.png)
(3)对任意的一个“好集”A,判断命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e63c91626ffa91e590925e6f206c3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae4f0ccdfc1206d809e581449d0452e.png)
您最近一年使用:0次