求下列函数的定义域和值域.
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18bde91b6839ea0dff79f2cd7b5637a6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948763260ee4ec36d6d7c21a8cf2c723.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8efaf5d45ddf0c9a78586a84031e533d.png)
更新时间:2023-07-13 18:55:04
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】设函数
,且
.
(1)求a的值,并求函数
的定义域;
(2)用单调性的定义证明:函数
在区间
上单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7051f05a32e550a1ccdc10bd796ed539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
(1)求a的值,并求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)用单调性的定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3acc59332a5189f4198f6a0a96113ce7.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】设全集
,已知函数
的定义域为集合
,函数
的值域为集合
.
(1)求
;
(2)若集合
,且“
”是“
”的必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd3510583d112bdc330f7451d37e762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9528eedd15b7a1603c291b606738d4d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2046f0ac902cd95831421558e671b14.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394b84c2ec9f41efcbaa60ba33290f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】已知函数
是定义在
上的奇函数.
(1)求
的解析式及值域;
(2)判断
在
上的单调性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0145be858d42a119bcbdf7a2c671b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次
【推荐2】已知函数
.
(1)求
的解析式;
(2)求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d659507ccf405ef940f436474ed9c8bc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次