名校
解题方法
1 . 已知集合,
,则
( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e107985e4de1e4543f0fa48668dfcdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a64fa9ce89e566fe47d95cd883da34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5181a0f9b1aaa85c2d959e300c7ac26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知全集
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514280f981a93e5851c131e746f6eee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1e02615f882d47376c2a0d1b09cf74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f5ea27f1457f54c8a89b66fd4a8589.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0c1c50c128c73dad03708e4ed81809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654765540d05198db2fa06cd5316c889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d8e13062c98558eabfa374ee91849b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知集合
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6d814f120c698a0990ccf10526684e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beed663ab7b323a08fb3a58e9c5c1dcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da56d64f7d5705ffbd6405297a28deef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6df425414ea9e32ff8746d3509d9f3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e8dfd64986c6d9e0cecbbad91c010b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知集合
或
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7dd97ac93383b3dce2fe0e1d8ab42ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17417d922dac412f1a723851ab9ba234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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9 . 已知有
个连续正整数元素的有限集合
(
,
),记有序数对
,若对任意
,
,
,
且
,A同时满足下列条件,则称
为
元完备数对.
条件①:
;
条件②:
.
(1)试判断是否存在3元完备数对和4元完备数对,并说明理由;
(2)试证明不存在8元完备数对.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244a73e2cab2b626e12058164680d7cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6526915197667b48dc2e6c1ff413bcf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ac49ab7c8001c209b8611b9ea40d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a8ca987823fe459fafc1c4fd057d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9458be5eac5e4b7fbd28850e43d96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba54a91d651db38d3a13a461252223e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a205f096c854a2f7cd71255056f9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9169084fc046cdf9b9831f4030f58217.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34affbf06b09098b13a5b89c0989fb8.png)
(1)试判断是否存在3元完备数对和4元完备数对,并说明理由;
(2)试证明不存在8元完备数对.
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解题方法
10 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc264085eff1fd74e02b8f5f6c6175d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb2a380c2f5281db51e940b93bc1a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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