若函数
的定义域为集合
,值域为集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e8dea734109c7b735d543f73529bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-02-18 21:09:11
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单选题
|
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【推荐1】设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7eb8cd9b5b9b61952efb3f70b90068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b02cb1aa048d48b0e0add455f9e0426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | 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2】已知函数
的定义域为
,则函数
的定义域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9eca1510647f9b40cf7ce69c3757f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2556b2dc347695320d64e65a28712c21.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】非空数集
如果满足:①
;②若对
有
,则称
是“互倒集”.给出以下数集:
①
;
②
;
③
.其中“互倒集”的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72552b86b4558a36aac78c7148d6a6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8a01d9a6956d2163ad59060ba97d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd77104cc745d1e0e262122da34482d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe65ed01a15c6fea2beb10f93ea4bed.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a76f18fbbea88752d1157408517a39.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e288577eb5f0bee0db05e87d938fb2.png)
A.0 | B.3 | C.2 | D.1 |
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