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1 . 选修4-5:不等式选讲
已知
,求证:
(1)
;
(2)
.
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81101a2c80def81702d2b1e7f76dd280.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906d6c552d9a174ee0085b18dc5fb95a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fac66f9bb87d0183901a25f9d60d36.png)
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2016-12-04更新
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3卷引用:2016届贵州省贵阳市一中高三第五次月考理科数学试卷