名校
解题方法
1 . 设
,若非空集合
同时满足以下4个条件,则称
是“
无和划分”:
①
;
②
;
③
,且
中的最小元素大于
中的最小元素;
④
,必有
.
(1)若
,判断
是否是“
无和划分”,并说明理由.
(2)已知
是“
无和划分”(
).
①证明:对于任意
,都有
;
②若存在
,使得
,记
,证明:
中的所有奇数都属于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8559db5cec89fb0ed29e8be8fdb0b1.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03710ecc47ca36cb01c337a71d300974.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6e72a98cbc82cb24cb85aa3ab837f5.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a2410ce34b36954ed4923e600d42f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e006283149b3d1662205b5271dd69db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f045d0c3275b992d4a4f90dcd20e63.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408f3365f7c6767cd3f006022ee22413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da92a00c5e0121accc325e50f6492fe.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8559db5cec89fb0ed29e8be8fdb0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5818ede14d21f6df9ef9c2bfe09286c.png)
①证明:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb6b675fa03f7268b8cbd1f1d91bd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4003dc977c4cacda932927eed9c9d10.png)
②若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8457b5be40500d437a83bb12e488b5eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bd7ed301e00171b88549a8deb65035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5203c10c41f8b8aaa4c9cc90f1f3271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2024-06-10更新
|
134次组卷
|
2卷引用:北京市丰台区2023-2024学年高一上学期期末练习数学试卷
名校
解题方法
2 . 已知非空集合
,
.
(1)若
,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55201a71f63e95aef66df1ca9e21551a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fbb02d5a584747b4a8287c6c24e0d1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-06-10更新
|
336次组卷
|
4卷引用:甘肃省陇南市第一中学2023-2024学年高一上学期期末考试数学试题
名校
3 . 下列结论错误的是( )
A.集合![]() |
B.设![]() ![]() |
C.与角![]() |
D.若![]() ![]() |
您最近一年使用:0次
2024-06-08更新
|
106次组卷
|
2卷引用:甘肃省陇南市第一中学2023-2024学年高一上学期期末考试数学试题
4 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bfce4cc86796843248b27fa39a23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b55853360ee06f08c84eee08bb2fedb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
5 . 设集合
{
为两个非零向量可能的夹角},集合
{
为两条异面直线可能的夹角},则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65efd7cc077f9728b0ca770d8c1f36ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a1db61ca5983e25040e76017e00e95.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f47635f7958a97a037d9a5c1b07d1f.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
7 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0a9055337eaf92ba84b661e6f7e769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-29更新
|
451次组卷
|
2卷引用:安徽省蚌埠市固镇县毛坦厂实验中学联考2023-2024学年高一上学期1月期末教学质量抽测数学试题
名校
解题方法
8 . 已知集合
,
.
(1)若
,求实数
的取值范围;
(2)若
,求实数
的取值范围;
(3)若将题干中的集合
改为
,是否有可能使命题
:“
,都有
”为真命题,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4cfb5d93fa28c188aa01a7b920634f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7566e20eeaa2ca570931bacc749b9bb9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若将题干中的集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0297c69a68d6d7d8abd636ca0fdab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd170c506a8ce70f550f5751ae016ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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9 . 已知集合A为非空数集.定义:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d0e7221341950bd4e1f93a803b9801.png)
(1)若集合
,直接写出集合S,T;
(2)若集合
且
.求证:
;
(3)若集合
记
为集合A中元素的个数,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d0e7221341950bd4e1f93a803b9801.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f0e502a03ff4b6a9f6fd29b8034992.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b5e47c9f736eabab184039643c34ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76ad1e03a6ba59e8164e37c5e7e063e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5a7e700e4c1d41bb3bb8be9f55580b.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa47f7e9136938b09be369fce567669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b5214a796412b3df9f716da0bf339b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b5214a796412b3df9f716da0bf339b.png)
您最近一年使用:0次
解题方法
10 . 已知集合
,集合
.
(1)若
,求
;
(2)若
,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6519ce97174f15a39b1427e0082603ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6344d7f472888314e83b9bc0c82b75.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次