已知函数
的图象经过![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8110af10ad85bc6b8d5b38298d9d368.png)
其中![](https://img.xkw.com/dksih/QBM/2012/4/18/1570836999151616/1570837004812288/STEM/b38e40fe9f8f4759b7fd241d13cad912.png?resizew=12)
为自然对数的底数,
).
(Ⅰ)求实数
;
(Ⅱ)求
的单调区间;
(Ⅲ)证明:对于任意的
,都有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ffa9c47c9fb3e392ce5a729b5a9ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8110af10ad85bc6b8d5b38298d9d368.png)
![](https://img.xkw.com/dksih/QBM/2012/4/18/1570836999151616/1570837004812288/STEM/4d3b538def084e34a26f19993d6b5320.png?resizew=11)
![](https://img.xkw.com/dksih/QBM/2012/4/18/1570836999151616/1570837004812288/STEM/b38e40fe9f8f4759b7fd241d13cad912.png?resizew=12)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84b8240c6eeccaed068ceeb0d5616ec.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅲ)证明:对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a13eaa9e948e72495ff081843cbabf2.png)
2012·贵州黔东南·一模 查看更多[1]
(已下线)2012届贵州省黔东南州高三第一次高考模拟考试理科数学试卷
更新时间:2016-12-01 18:18:58
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【推荐1】已知函数
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(1)若
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(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde097fd84d6e5c522d1f34ad16b8ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040135d64192de075ba0cc9f11ddbc9a.png)
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②试问
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e1fcca51be2f5fea9bb06d0146fa50.png)
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【推荐1】已知函数
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解题方法
【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a194e46444e8a00d5f6bd6d06a86e61b.png)
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