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[数论] 请教一个条件最值问题

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hongxian Posted 2013-8-2 20:32 |Read mode
Last edited by hongxian 2013-8-3 09:51若\(x\)、\(y\)为正整数且满足\(x^2-8x-1001y^2=0\),求\(x+y\)的最小值

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kuing Posted 2013-8-2 20:49
正整数……居然是数论题

PS、为什么不用 $ ……

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 Author| hongxian Posted 2013-8-2 21:00
回复 2# kuing

有的论坛上好象$不能用,所以现在多用\(

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kuing Posted 2013-8-3 01:34
软件说它无解……
这题出处是哪

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 Author| hongxian Posted 2013-8-3 05:58
Last edited by hongxian 2013-8-3 06:58回复 4# kuing


funlearn.tw/viewthread.php?tid=19393&extra=page=1

居然发再题目打错了一个数字$=0$,居然打成了$=1$,现在改了过来

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其妙 Posted 2013-8-19 17:21
回复 5# hongxian
还以为是不等式题呢?
假如当成不等式题,取等条件恰为正整数的话,那不是运气很好么?

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kuing Posted 2013-8-19 17:32
回复 6# 其妙

你来碰碰运气看看……我没试过

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其妙 Posted 2013-8-19 17:34
回复 7# kuing
算了,不去碰这个运气。不过偶尔碰见过,概率较小

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其妙 Posted 2013-8-19 18:15
看见过一个类似题:只是不需要整数
博客图片.jpg

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