1 . 选修4-5;不等式选讲
若
且![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003584425984/1572003590553600/STEM/e91df2ce55dd4f89b19e483605984f35.png)
(1)求
的最小值;
(2)是否存在
,使得
?并说明理由.
若
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003584425984/1572003590553600/STEM/71db07e1c19f4fd793c3ee52f0e50dad.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003584425984/1572003590553600/STEM/e91df2ce55dd4f89b19e483605984f35.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003584425984/1572003590553600/STEM/368b45eeadd34e7ea6334a13fb75be7e.png)
(2)是否存在
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003584425984/1572003590553600/STEM/741aa84d595e4a2e96fab825f72b8840.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003584425984/1572003590553600/STEM/41265fd93319412496d968c0d119e8ad.png)
您最近一年使用:0次
2016-12-03更新
|
92次组卷
|
3卷引用:2015届江西省吉安白鹭洲中学高三上学期期中考试文科数学试卷