已知二次函数
.
(1)设
在
上的最大值、最小值分别是
、
,集合
,且
,记
,求
的最小值.
(2)当
时,
①设
,不等式
的解集为C,且
,求实数
的取值范围;
②设![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/ef09e460ec954de087e3830578e51c37.png)
,求
的最小值.
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/09abe553d77240be9987a32d5ddd5919.png)
(1)设
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/d7732c7f114a46568e9e40fbcdf8ff6a.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/e0a5c94c8b644eb0a4089650af8cdc30.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/dfc2c86c29b44d6f93f4eedeae279d76.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/bf167b00f5f44ebe9e6f30c367d228cd.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/6fa6ddfc60024e9395cd9adeb82a0558.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/06fe21bccce54b6297f7cc77462ae0ce.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/ec51c6bd5fd0414eb82a00f57bf96628.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/9cfa09631c1b48348e75d87c7d645ad2.png)
(2)当
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/c142f5af7a3540d8b97be3ac4c2fea87.png)
①设
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/08b2f5186b25438793d71c399df2f84f.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/b11342a9b0184bf785e88958c8db22e5.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/e5f0cd0fcbf0498db0f879ba683dec96.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/662da1a4b76044c09d852fd16cb24c18.png)
②设
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/ef09e460ec954de087e3830578e51c37.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/349df72b60bc4a5286c9479adcf2a465.png)
![](https://img.xkw.com/dksih/QBM/2013/1/16/1571099508948992/1571099514421248/STEM/858eb731196b4495a552fbdb8f7c41bd.png)
13-14高三上·江苏连云港·期中 查看更多[2]
更新时间:2016-12-02 03:13:03
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【知识点】 高中数学综合库