已知函数
,求其定义域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7625e13a1bb039750c732e08e1fa0b2f.png)
更新时间:2020-02-28 14:27:12
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相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】求下列函数的定义域:
(1)
;
(2)
;
(3)
;
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd1ecec6211774f7696eeea2f152953.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aecba226b0184cea80f8aab69e9af7ab.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9816d8e782c45dfa44992538f97df90.png)
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【推荐2】设函数
的定义域为集合
,不等式
的解集为集合
.
(1)求集合
,
;
(2)求集合
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf2eba6a3b353cd10cc286e63ca5c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fc192aec8194eea0fed52a858c7cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8489e291d540e36c33cd17b037c1e9cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e0811379579aaf2cd2d3df47fad857.png)
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解答题-问答题
|
较易
(0.85)
【推荐1】已知命题p:
;命题q:方程
有实根.若
为真,求实数m的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572316649381888/1572316655517696/STEM/111f7fe8d024468ea45ab838f506ffd1.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572316649381888/1572316655517696/STEM/c4f49650b9a943c0b80a229268c884da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐3】已知关于
的不等式
的解集为
.
(1)求集合
;
(2)若
,求函数
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97ef01b2ef24659b469058fdc5bdec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c639b13c248a63215405a9f895a00fb.png)
您最近一年使用:0次