1 . 选修4-5:不等式选讲
已知定义在
上的函数
的最小值为
.
(Ⅰ)求
的值;
(Ⅱ)若
,
,
为正实数,且
,求证:
.
已知定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4130d43842d66f72bde3ae6e7ce5c79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4f1f0fc85cdb00af5e8789e40d0d17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3247a5de91b3847cdc353a38535e247.png)
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2016-12-04更新
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6卷引用:2015-2016学年重庆市八中高二下期中理科数学试卷