1 . 下列叙述正确的有____ (将你认为所有可能出现的情况的代号填入横线上)
①集合
的非空真子集有6个;
②集合
,集合
,若
,则对应关系
是从集合
到集合
的映射;
③函数
的对称中心为
;
④函数
对任意实数
都有
恒成立,则函数
是周期为4的周期函数.
①集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4216159b10fe5eca38c738cb7539fd5.png)
②集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6e6405e2ecdfca6d442c5dc1c2f86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c680a1749ca2becc4ff99d87f8ea9ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57d162a31405180be2bf7cf877540336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa8ddcbbe89ab0f250f56673e2d36c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0461ede948254f8c5410a77a150577.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50cc70f437e77f2186e93535036ab8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解题方法
2 . 设
,则满足条件的所有
组成的集合的真子集的个数是_______ 个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4741985da47d1b45e79cc9f7a5294cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
3 . 满足![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/a5b7b32b4b494672996fe1e066016b3c.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/96e48a2a98464cbca60288ed7b7878e3.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/69fbc74212a849229437150ce96aad99.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/96e48a2a98464cbca60288ed7b7878e3.png)
的集合
的个数为
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/a5b7b32b4b494672996fe1e066016b3c.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/96e48a2a98464cbca60288ed7b7878e3.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/69fbc74212a849229437150ce96aad99.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/96e48a2a98464cbca60288ed7b7878e3.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/c8d33a089aba4114a929acee069b7fbe.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572462062903296/1572462068350976/STEM/69fbc74212a849229437150ce96aad99.png)
A.6 | B.7 | C.8 | D.9 |
您最近一年使用:0次
2016-12-03更新
|
355次组卷
|
3卷引用:2015-2016学年河北省枣强中学高一上学期第一次月考数学试卷
4 . 设集合
,集合
,则集合
的真子集个数
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927073792/STEM/f728b6be946e4c64afe495eeaeaffc1a.png)
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927073792/STEM/92c79542b4cd4b2ebe024ca37d17478a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.13 | B.14 |
C.15 | D.16 |
您最近一年使用:0次
10-11高一下·河北衡水·期末
5 . 已知集合
,则满足
的集合N的个数是
![](https://img.xkw.com/dksih/QBM/2015/3/17/1572011842043904/1572011847491584/STEM/55f6bbf35a954a7f9901b6dc3af20870.png)
![](https://img.xkw.com/dksih/QBM/2015/3/17/1572011842043904/1572011847491584/STEM/2d8f70b808504bf4b869381ba6f60f83.png)
A.2 | B.3 | C.4 | D.8 |
您最近一年使用:0次
2016-11-30更新
|
565次组卷
|
3卷引用:2010-2011年河北冀州中学高一年级下学期期末考试文科数学(A卷)
6 . 集合
各有两个元素,
中有一个元素,若集合
同时满足:(1)
,(2)
,则满足条件
的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d259db9bb0e132881e875a77d324057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a537fc66892b3c9dd3cc11cf2cf9841b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3b12398c06fcbaa93af3b974f923a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
177次组卷
|
3卷引用:2016-2017学年河北武邑中学高一上周考9.11数学试卷
7 . 已知全集
且
,则集合A的真子集的个数为个
![](https://img.xkw.com/dksih/QBM/2015/11/16/1572288965033984/1572288970686464/STEM/73028cc0938c486aadeef339ab4d34b3.png)
![](https://img.xkw.com/dksih/QBM/2015/11/16/1572288965033984/1572288970686464/STEM/9cc167a83ae54fa1b03395e9dc111e47.png)
A.6 | B.7 | C.8 | D.9 |
您最近一年使用:0次