若不等式
对任意实数
都成立,则实数
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc22cd2971e94c875e5b2da9d215d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2019-04-29 08:48:03
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适中
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【推荐1】若不等式
对任意的实数
恒成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c22205af57aaf3758d5b04484ad9a9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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填空题-单空题
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适中
(0.65)
解题方法
【推荐2】已知函数
的定义域为
,给定两集合
及![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
,则集合
的元素个数是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6b2148fae0c835f21c0c8f2131f9bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e328799fc76704b032e95ac4ecb95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc905f4450c237e2b8f4a3e58ac0aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
您最近一年使用:0次