函数
,
.
(Ⅰ)当
时,求函数
的单调区间和极大值;
(Ⅱ)当
时,讨论方程
解得个数;
(Ⅲ)求证:
(参考数据:
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60266e7d0ef92751015f45b3a57df937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fed549a78bd5c657a6656172653a20.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da989240786ef7c3e2d903f30caf59e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
(Ⅲ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3de9a01fceffcdbee3bee0cccfa8fe.png)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572183135567872/1572183141711872/STEM/6d6a412dfacc4f128522626b03ffc2a2.png)
更新时间:2016-12-03 15:57:42
|
【知识点】 导数在函数中的其他应用
相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】已知函数
.
(1)讨论函数
的单调性;
(2)当
时,数列
满足
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6aa8089b5d9b722aff679af3c4d289.png)
①求证:
;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0730ea5a5d9d25f1c012a78b390e8bc4.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6aa8089b5d9b722aff679af3c4d289.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c101acd1f4d2d79055068877921c2b5d.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984992c5bb21f9ac5bdaad6c228f2e25.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
解题方法
【推荐2】已知函数
在点
处的切线与直线
垂直.
(1)若函数
在区间
上存在极值,求实数
的取值范围;
(2)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61082b7e56bb497b4fa348427024dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e131b589e93d16f2ed5688fd4fe814d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafa5eff5f9caee80c844dca94c022d5.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987ee644169ad93379283ae715d8ebf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54bf53f0086c12fb7475c733a9520975.png)
您最近一年使用:0次