Mod. Đề nghị bạn học gõ công thức toán và gõ Tiếng Việt có dấu trên diễn đàn, cảnh cáo lần 1.
Edited by Phạm Quang Toàn, 02-11-2011 - 16:22.
Edited by Phạm Quang Toàn, 26-10-2011 - 14:16.
Discovery is a child’s privilege. I mean the small child, the child who is not afraid to be wrong, to look silly, to not be serious, and to act differently from everyone else. He is also not afraid that the things he is interested in are in bad taste or turn out to be different from his expectations, from what they should be, or rather he is not afraid of what they actually are. He ignores the silent and flawless consensus that is part of the air we breathe – the consensus of all the people who are, or are reputed to be, reasonable.
Grothendieck, Récoltes et Semailles (“Crops and Seeds”).
Edited by nguyentrunghieua, 26-10-2011 - 20:02.
p, q là các số nguyên tố > 3.
Suy ra p, q lẻ và ko chia cho 3.
-p - q = 2
suy ra 1 số / 4 dư 1, 1 số / 4 dư 3.
suy ra p + q chia hết cho 4.(1)
-p-q =2
suy ra 1 số / 3 dư 1, 1 số / 3 dư 2.
suy ra p + q chia hết cho 3.(2)
(1), (2) suy ra p + q chia hết cho 12
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