真题
解题方法
1 . 已知函数
.
(1)求
的单调区间;
(2)记
在区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98e1d5a4afb954e1ae18774f6b19dbe.png)
上的最小值为
,令
.
如果对一切
,不等式
恒成立,求实数
的取值范围;
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a59de564461be1616f3bcc9cb23280.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98e1d5a4afb954e1ae18774f6b19dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d5fa85887816de29bcff4f143e3f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60be4bed57e32acf2311e25d57c10e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f05620837db2a3247641d8676facadab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe13320e4757c1db83f60b52e852340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba6032621126e028e5f8bbd67d50d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93d9fd33ce6eaf449da94ef443790fd.png)
您最近一年使用:0次
2019-01-30更新
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1532次组卷
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2卷引用:2008年普通高等学校招生全国统一考试理科数学(福建卷)