名校
1 . 设函数
(
)的最小值为
.
(1)求
的值;
(2)若
,
,
为正实数,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57530a487367697c920f4bb2df591599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861ec3a6c3c6fd17393f625d32940dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80656b731580035f2d5f137a0a97cbb7.png)
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2020-03-28更新
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9卷引用:2020届福建连城县第一中学高三4月模拟考试数学(文)试题