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[不等式] 不等式

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链剑心 Posted at 2014-3-22 15:08:19 |Read mode
Last edited by 链剑心 at 2014-3-22 15:27:00$x,y,z$是自然数。
\[\sum\frac{x+1}{y}\]
也是。
求证:
\[\gcd(a,b,c)\leqslant\sqrt[3]{xy+yz+zx}\]

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2025-4-22 03:44 GMT+8

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