Bingo! 小問題討論一下吧 - 拼圖
![Elizabeth avatar](/img/cat5.jpg)
By Elizabeth
at 2005-06-10T03:14
at 2005-06-10T03:14
Table of Contents
五線皆不相交 => 25 點
每兩線相交一次則省去一點
根據鴿籠原理,必有兩線平行 => 相交次數最多為 C(5,2) - 1 = 9
故點數最少有 25 - 9 = 16
--
每兩線相交一次則省去一點
根據鴿籠原理,必有兩線平行 => 相交次數最多為 C(5,2) - 1 = 9
故點數最少有 25 - 9 = 16
--
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拼圖
All Comments
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By Donna
at 2005-06-14T11:04
at 2005-06-14T11:04
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