Chứng minh rằng $ B^n=0 $
Edited by tanlsth, 07-01-2008 - 20:57.
Edited by tanlsth, 07-01-2008 - 20:57.
Learn from yesterday,live for today,hope for tomorrow
The important thing is to not stop questioning
Edited by tanlsth, 08-01-2008 - 18:43.
Learn from yesterday,live for today,hope for tomorrow
The important thing is to not stop questioning
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