解题方法
1 . 已知集合
,
.
(1)若
,求
;
(2)若
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3f180c2ec5d81422ad736c66286e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c18c55b7326d68fb131a20cf20fae4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3e3600b1f6d24d2eedaef253c45edb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
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2 . 交并集的性质
A∩B______ A A∩B _____ B A∩Ø ______ Ø
A______ A∪B B______ A∪B A∪Ø_______ A
A∩B
A
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解题方法
3 . 已知非空集合
,
,全集
.若“
”是“
”的必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d79ebd83a5e4011f98ee8209ba6953b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6339659081ae1b9ca58aa9d3f6bcf63e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
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4 . 已知集合
,
,全集
.
(1)求
;
(2)若
且
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a7b5af2910dd3a2929a0a0e56735be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66758eaf09fe2606ab088a0576fba55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb34d248cde6953c998bffb6ff65b34.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92976b33158c9c24a6c0e301cd207278.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4981d8963afc7b6b60f3876d9ebe3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae0fb3ff9de174ad691a54ad0ce04c1.png)
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名校
5 . 若全集
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de19d960f335bbfd921d9fd4e89a41c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79a7ea92bb01c5480289c4766000eb8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-13更新
|
2543次组卷
|
5卷引用:河南省商丘市虞城县第一高级中学2024届高三上学期第三次月考数学试题
解题方法
6 . 设集合
,
.
(1)若
是
的充分不必要条件,求实数m的取值范围;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97e93884f599b57d8729b0e8092708a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a0730f7e8f3ce4d05aa3e56cbfbf0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
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2023-11-11更新
|
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7 . 设
是实数,使得不等式
成立的一个充分而不必要的条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ecd2761d6201c757e413389496e5d08.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-09更新
|
415次组卷
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3卷引用:河南省商丘市名校2023-2024学年高一上学期期中联考数学试题
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解题方法
8 . 设
,若
,则实数
的值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753f76fd0f69ca8ce5f47da4f2d71be7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.0 | C.![]() | D.![]() |
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2023-11-09更新
|
306次组卷
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4卷引用:河南省商丘市名校2023-2024学年高一上学期期中联考数学试题
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解题方法
9 . 已知集合
,
.
(1)当
时,求
;
(2)若
,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5a6b2b002ecc8bbc34ece6a993e613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57349fc99aeed5e14e57851f89265171.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a069f116c0e5802c89d7f62f1591f991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-11-09更新
|
207次组卷
|
2卷引用:河南省商丘市名校2023-2024学年高一上学期期中联考数学试题
解题方法
10 . 已知集合
,
.
(1)当
时,求不等式
的解集;
(2)在①
,②
,③
这三个条件中任选一个作为已知条件,求a的取值范围.(注:若选择多个条件分别解答,则按第一个解答计分.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c93fbd2e4edf4ee87d000e4a28619d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0f4cfd5e4de2ad8d78b509c40e7fe5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce86e9a3437aa44fd2c8452aec77e58.png)
(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf37be0c2d4521397102009c248f3cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/162ae13f0a5b3b825f51648fb85d7d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15841ac004568a464df9cc7bb18392.png)
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