解题方法
1 . 已知集合
,
.
(1)若
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d746bb618d2c721d31a29a6355f6e94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0455780697b6cdaf1c5f2d2f3ec7e3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97ea1b5b0366fe864b92a4112dd5700.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e3c75b4d567d3d8613777a79bf57d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
2 . 设全集
,集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9a9779c1aa971c463447e664aacda8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738a7c89b55b5c5aed4f31b5ce834134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48de3fb022e2fc337a3c945c24676364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d19c887002cc13f351b14b929c02d1d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-06更新
|
602次组卷
|
2卷引用:河南省郑州市河南省实验中学2023-2024学年高一上学期12月月考数学试题
名校
解题方法
3 . 设全集
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db493496009be376dea37044bc45e714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ec7089ea80240ee6103bbcf917d6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c589c66e5bbcc7c534f6671e921ef6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-28更新
|
609次组卷
|
2卷引用:河南省新高中联盟TOP二十名校2023-2024学年高一上学期12月调研考试数学试题
名校
4 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c917696237e9900635a274179601a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b3e0831a124c918d9fa0eca67cf085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b9f7e84867b71bdb8f0d7fd48bd582.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-25更新
|
348次组卷
|
2卷引用:河南省南阳市六校2023-2024学年高一上学期第二次联考(12月)数学试题
名校
解题方法
5 . 已知集合
,
.
(1)当
时,求
;
(2)若“
”是“
”的充分条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d303abeefa1e6dbdcfd42c31dc14dc41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafebbde12ac05f77ff679de6de4ba58.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5982b3beb3f2ea5055e3dc55f3e587d3.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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6 . 已知集合
,
.
(1)求
;
(2)若
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae951e2e42cc13e6d0ae739633a67ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee8be8d9f3faae4b50e9eebf4f86acf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1de657294cd6f13fbb73736409a2e0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6fc68136b3b0f0468177358c4be2f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1561cc8d4b5688f114b7563fb51a272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 设
是小于9的正整数},
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5f10b560a5d5d117c3069cb1715b69.png)
(1)求
;
(2)求
,
;
(3)求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3eb0cde6b09a622de9550fd3a5ccee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca717c6a55e786238e64f7ebd69b9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5f10b560a5d5d117c3069cb1715b69.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c093cbde3d3472d1f7f2b0dff2bc4881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7817b055b567e64ea8914a5d6e9b45d.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e5450f24464d07f1a767714fa639cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db265773aaa855915ed0b8d3f66a70a.png)
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8 . 已知集合
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6debdd8d63765eca4fc023d5a19f4e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec56a3bab3245ab312b12a1c08cce6a0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
9 . 已知集合
.若
,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491ee178f6f55e451d11c224ada44a0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808b11702a4e8eb1c249dce2446b42f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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2023-12-03更新
|
263次组卷
|
2卷引用:河南省济源市高级中学2023-2024学年高一上学期10月月考数学试题
解题方法
10 . 已知全集
,集合
,
,则图中阴影部分所表示的集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24496a380ce63ded97648ca90058423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7b607ce2e6ff6b23d27056b41ebfe39.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/19092341-5636-4f8f-a5b4-737c90ba2553.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
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