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MATHS combination
2010-03-06 9:31 pm
6 balls are put into 3 identical bags, 2 balls each. How many ways can this be done?
回答 (2)
2010-03-07 1:31 am
✔ 最佳答案
===============================================圖片參考：http://img687.imageshack.us/img687/4284/78707371.png
2010-03-06 17:31:07 補充：
http://img687.imageshack.us/img687/4284/78707371.png
2010-03-06 10:05 pm
15????????????/
收錄日期: 2021-04-23 23:21:40
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100306000051KK00685