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[不等式] 菊部不等式除了用菊部来想,应该怎么掌握?

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Tesla35 Posted 2014-10-8 19:46 |Read mode
1.png
2.png

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 Author| Tesla35 Posted 2014-10-8 19:55
这个貌似可以用先猜出右侧,去分母证明菊部的思路来想?

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爪机专用 Posted 2014-10-8 20:09
要菊部,找计爷

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琉璃幻 Posted 2014-10-16 13:05
想jb

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其妙 Posted 2014-10-19 13:38
你这个怎么翻译呀?有歧义哟!
楼主的题目是三元的,也可以推广到n元吧?
除了jb,也可以配对法:
blog.sina.com.cn/s/blog_3e2913e90102v8ci.html(题2)

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kuing Posted 2014-10-19 14:58
回复 5# 其妙

链接错了?

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 Author| Tesla35 Posted 2016-8-31 00:50
现在清楚了。这个用了反向柯西技术。明天收录。

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力工 Posted 2016-9-1 16:10
回复 7# Tesla35

哪个题柯西反转技术?

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 Author| Tesla35 Posted 2016-9-1 20:12
回复 8# 力工


    就是图片里这个题啊。

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其妙 Posted 2016-9-11 18:52
回复 9# Tesla35
楼主的题目是三元的,也可以推广到n元吧?看一下这里:blog.sina.com.cn/s/blog_54df069f0101g2ia.html

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