名校
1 . 若集合
,
,则
的最小值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f2588f46c7c6fa69f9254106d5574e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2faf3937abcb6a59071c17bc6bb10f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac6a69239604944fc4878ff80e0cdc1.png)
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解题方法
2 . 若不等式
对任意
恒成立,则
的取值范围是 _____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9352f36605ea6e77bc34931071fabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2428921c82d2ace53ade031fa21fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 已知函数
定义域为
且为奇函数.当
时,
,则
在
上的值域为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/898b76a963e84403bcdeb9d7008964ae.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/75e67e5e8b5d4ab8a27d23bcc53c9fd2.png?resizew=67)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/d67d5dc9d2fb4e39a64252e66194dbd8.png?resizew=105)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/33a2c3fef3ee4a6084773f8591f8ab97.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/898b76a963e84403bcdeb9d7008964ae.png?resizew=63)
您最近一年使用:0次