名校
解题方法
1 . 已知
,
.
(1)若
时,求
,
;
(2)是否存在a值使
是
成立的充分不必要条件,若存在求出a的取值范围,不存在说明理由.
(3)若
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cdb0f0857f6e7480096a3645b6aca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47492deca35a820623067e465e1042cc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318212b9ba5866ba3fd6f4327526443f.png)
(2)是否存在a值使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4753cb6284ad882864ec4cccfcf158.png)
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2023-10-22更新
|
180次组卷
|
2卷引用:河北省保定市第三中学2023-2024学年高一上学期10月月考数学试题
名校
解题方法
2 . 集合
,
,若
,则实数a的取值集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e72a1dd7b4f353cccf89df57c2bdef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb19d0b3bba74b80e3b9708937386d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0250aa58e8010e0565836b5d5c3639d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
3 . 已知全集
,且
,
,
,则集合
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2420ae7dc78a4d9955007783160d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbd23dc05c7f32d80791ac06e91e930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27b2a6aed1b538288b4550e304a5637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103bfd7971541dc1788107f1745c4280.png)
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名校
解题方法
4 . 设全集
,集合
,集合
,其中
.
(1)若“
”是“
”的必要条件,求
的取值范围;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57f566754a70f797b87c8ff7b7a3d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e0d1c1379eb5261b4af9bd986c76d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 若集合
或
.
(1)若
,求
.
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd0970f97a8432d9363cc7b67f3ab06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3af8016928d5a32f956921a403eb92d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361048fd1b1a7f3b7230404a04b7155a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
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解题方法
6 . 已知集合
,
.
(1)若
,求实数a的值;
(2)诺
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f0f29269a69ef81f750f08e02260d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ddbf20957f4724e5db3bfa94df262df.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0267968ff3f539447578f1abed0a7e76.png)
(2)诺
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4563d84dea9df685e59588cf04d9d67.png)
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名校
7 . 设集合
,集合
.
(1)若
,求实数a的值;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97927627b6890964c516f02dc34ed2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146012b0dc008448aac883cf000b49ac.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906ea02bdb4a1f6dc7d477109486c6de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
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2023-10-15更新
|
134次组卷
|
2卷引用:河北省唐山市开滦第二中学2023-2024学年高一上学期10月月考数学试题
8 . 若集合
,集合
,则“
”的充要条件是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5abf9f2da9055403875dd8dcadaa82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e034645157143450f4fb5fdf54d4ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40decd6a439444b426eef6961ad26a46.png)
您最近一年使用:0次
解题方法
9 . 已知集合
,其中
,且
,若
的所有元素之和为20,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7349abd0c9ebca535c5aea6eb39e2d21.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf0059d58a8a4b4ccbcb320c4888cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465ebb9590f0c160214382d84ffec71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56684a361fbf19bde8669177d991e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7349abd0c9ebca535c5aea6eb39e2d21.png)
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2023-10-13更新
|
151次组卷
|
6卷引用:河北省保定市部分高中2023-2024学年高一上学期选科调考第一次联考(10月)数学试题
名校
解题方法
10 . 已知集合
,集合
.
(1)当
时,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666df1c78d7569509e260c83612f0481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d57f5052554510e02906a6a0f0904f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9632fb65f82e4430cf0ccc4b9a9ba2bb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-10-13更新
|
746次组卷
|
10卷引用:河北省保定市部分高中2023-2024学年高一上学期选科调考第一次联考(10月)数学试题
河北省保定市部分高中2023-2024学年高一上学期选科调考第一次联考(10月)数学试题河北省沧州市大数据联考2023-2024学年高一上学期10月月考数学试题江西省部分学校2023-2024学年高一上学期10月联考数学试题贵州省遵义市2023-2024学年高一上学期10月月考数学试题江西省南昌市等5地2023-2024学年高一上学期10月月考数学试题辽宁省部分高中2023-2024学年高一上学期10月月考数学试题内蒙古自治区呼和浩特市内蒙古师范大学附属第二中学2023-2024学年高一上学期10月月考数学试题贵州省黔东南苗族侗族自治州从江县第一民族中学2023-2024学年高一上学期10月月考数学试题重庆市第八中学校2023-2024学年高一上学期期中数学试题江西省吉安市2023-2024学年高一上学期期中联考数学试题