已知函数
在
处的切线
与直线
垂直,函数
.
(1)求实数
的值;
(2)若函数
存在单调递减区间,求实数b的取值范围;
(3)设
是函数
的两个极值点,若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a136afa15ea25aba12111fd15f6340f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c204834608f1a8fba15747210dd7c5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20780c3e74178fa3a114c97c751986de.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)设
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572416810254336/1572416815579136/STEM/5cf98907acc24b6bb12bede3b1e8a3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572416810254336/1572416815579136/STEM/5b193305822646c084496376212543bf.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572416810254336/1572416815579136/STEM/e2cd4cd7eb4d44d19c33dcb25fca44b1.png)
更新时间:2016-12-03 23:53:06
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