解题方法
1 . 已知函数
.
(1)求函数
的单调区间;
(2)若
恒成立,试确定实数
的取值范围;
(3)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbeca4dcb96fb712208e2b111c1a58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ebc0939e9a3f9951add30e16e101170.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbeca4dcb96fb712208e2b111c1a58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355cca9254af2f5ac55e33e4241b3062.png)
您最近一年使用:0次
2016-12-04更新
|
1803次组卷
|
4卷引用:2015-2016学年河北省定州中学高一下期中数学试卷
2014·广东广州·一模
解题方法
2 . 已知函数
在点
处的切线方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e3da18d31497e7c2ce5217d139f80e.png)
.
(1)求
、
的值;
(2)当
时,
恒成立,求实数
的取值范围;
(3)证明:当
,且
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258dd85e09a19c1fd925c93053b42fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e3da18d31497e7c2ce5217d139f80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053b57b82dffc6125b9f27569d5407cd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e60359c15b119667073ee2a7e7bb885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d9edcb2616c243a3f5bf2379cfa56a7.png)
您最近一年使用:0次