已知x,y∈R,且|x+y|≤
,|x-y|≤
,求证:|x+5y|≤1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
更新时间:2018-01-10 20:20:33
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相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9681df18aca9ab13b83fd48267c1ae.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93a699a385ae453ce1a6f98e6eb519b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77f5a43017b43fa9c29ad4ee6578f100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】已知函数
.
(1)若关于
的不等式
有解,求实数
的取值范围;
(2)设
,且
.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d5d52fafaab124941da585628027aa.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561480e3d3809613c33ce1f9c8890510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1904e15dfee7a905a0b5b87243d10501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ad5cfb7effa1c06226413e2bc49d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da82d1ce61eced5152bd8eca34c8bf8b.png)
您最近一年使用:0次