已知集合
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603e1a9787efd4083f4842d155c5b86c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-02-22 17:11:09
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相似题推荐
单选题
|
较易
(0.85)
【推荐1】已知
,
,则A∩B等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f5e26d0abd74f8fb0b4c3b7f6aab69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375ce81ada9004991afa386380d17674.png)
A.{(1,-2),(-3,6)} | B.R |
C.[-3,+∞) | D.∅ |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a62d63e8b88261b267d7d6f29117045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d234109801cd6fbef4a982193691b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5ef2eaf86b09873cd5ff7811849597.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】已知集合
,
,若
,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b79c0c14cb0a7eebe4d09f151ebae75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2752a186be9b5d30baded8816899270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44939b9be0f8b7e14f24306f74fe613f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.[2,+∞) | B.(2,+∞) | C.(-∞,0) | D.(-∞,0] |
您最近一年使用:0次