1 . 已知正实数
满足
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21aea4b9cdf4b1c51f1e770e74370b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f560f01fd966becba43e5c1baf6062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdfc58fb5609724783d8e9ec311378c.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
.
(1)求不等式
的解集;
(2)若
的最小值为
,正实数
,
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72665a0e4d94069e2530f89695794f1.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b45f8224a638bb503ccb01749cfeb1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3435f5038d0e0107fdc065c477feb96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583bfecb049f726cb63b6bc8b473ba1e.png)
您最近一年使用:0次
2017-04-01更新
|
673次组卷
|
3卷引用:2017届广西陆川县中学高三下学期知识竞赛理数试卷
3 . 求函数
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d2692c7a0018ccc9e6f46280b20380.png)
您最近一年使用:0次