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nguyenbao8ekyanh

Member Since 24-02-2011
Offline Last Active 29-03-2012 - 12:26

Posted by nguyenbao8ekyanh on 27-07-2011 - 07:50

Bài 8: Cho a, b là các số nguyên dương thỏa mãn a + 1 và b + 2007 đều chia hết cho 6
Chứng minh rằng $ 4^a +a+b $ chia hết cho 6

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