Pythagorean triple

2009-02-05 8:31 am
For positive integers a,b,c which satisfy a^2+b^2=c^2
Prove that 12|ab and 60|abc

回答 (2)

2009-02-05 8:44 am
✔ 最佳答案
ref. http://tw.knowledge.yahoo.com/question/question?qid=1008102910704

3|ab, 4|ab =>12|ab
3|abc, 4|abc, 5|abc => 60|abc

FINE.


2009-02-05 10:05:24 補充:
克兄作答比較漂亮也比較早,得分正常.
義務作答,不必計較輸贏!
提問人是初學者,故以較簡單的話回答!
得到好友rex的讚同,夠了!

2009-02-05 10:05:53 補充:
Sorry! 錯字, "贊"同!
2009-02-05 9:30 am
你當年輸了


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