1 . 下列各式中,正确的个数是
①
;②
;③
;④
; ⑤![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9d94d3893a34e30a2150066b23ff25.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c4338fd4c8be4a05ddc05650284976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f583e3c1cfb1ea89a16a3e8f13bba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0c5a6e253e6e764276147ac04539c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c25156740ae538139ec48688746f57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9d94d3893a34e30a2150066b23ff25.png)
A.5 | B.4 | C.3 | D.2 |
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2 . 设集合
,则下列关系正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab74efe336f1fba4ce06f42a47af0339.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-02-24更新
|
265次组卷
|
2卷引用:重庆市合川区2018-2019学年高一上学期期中联考数学试题
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3 . 下列说法正确的个数是( )
①
;②
;③
;④
;⑤
;⑥
;⑦
;⑧
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fbadf90c9dc08e47cefc8e3cbfbf62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c4338fd4c8be4a05ddc05650284976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15341bfbaacc1b5a8911d3ed62e4aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf82d0306f6f5ce7b8aa3c8b4059e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9d94d3893a34e30a2150066b23ff25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd217f6c26c6910f72dcbb096a7c816c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f583e3c1cfb1ea89a16a3e8f13bba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c23dc7542571b632eb094d642c9f6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 若正实数
,
,
,
构成集合
,以
中四个元素为边长的四边形可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595044a7750ab4f84519041979c3d780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.梯形 | B.平行四边形 | C.菱形 | D.矩形 |
您最近一年使用:0次
2019-10-30更新
|
299次组卷
|
2卷引用:人教B版(2019) 必修第一册 必杀技 第一章 1.1.1集合及其表示方法
名校
5 . 已知集合
,
(1)判断
、
、
是否属于集合
;
(2)集合
,证明:
是
的真子集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0c2af14396fd2fc90be74c328f7d8f.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291ea2ce31223defa74775e759b77e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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6 . 已知集合
,
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c37839798a95168c785c4c009620cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee24111a8cb4bf2f72373474aa29fb7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
17-18高一·全国·课后作业
名校
7 . 设集合M={x|x=3k,k∈Z},P={x|x=3k+1,k∈Z},Q={x|x=3k-1,k∈Z},若a∈M,b∈P,c∈Q,则a+b-c∈________ .
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2019高三·全国·专题练习
8 . 集合M={x|x=1+
,a∈N*},P={x|x=
-4a+5,a∈N*},则下列关系中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54e0c8525493798de0f7f9d7b49a54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54e0c8525493798de0f7f9d7b49a54d.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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9 . 已知集合
,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5361ed288fa23f3b5d16cbc09d3293d4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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19-20高一·全国·课后作业
10 . 用“
”“
”“
”“
”填空:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
_____ Q,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432187d1c042787433b7633292d00fe.png)
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e581739cffb5676d997a58ab10d58880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b980d8446f130dfc405c196109e73ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02aa4d15acfc6884e0c41a56450fcaf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432187d1c042787433b7633292d00fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c33b69adc112831fa115b5dffdb616.png)
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