名校
解题方法
1 . 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
名校
解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10905f5554f6d0b46a902f8bf722ceba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
(1)求证:
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10905f5554f6d0b46a902f8bf722ceba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3573e1de2493c7625e688cf13791b9ce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347ad2fa477e5ce4c3d127d5c6b9c9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次