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수악중독

2008 AMC12 A #15 본문

AMC12/2008

2008 AMC12 A #15

수악중독 2014. 12. 19. 17:10

Let k=20082+22008k=2008^2 + 2^{2008}. What is the units digit of k2+2kk^2 + 2^k ?


(A) 00          (B) 22          (C) 44           (D) 66          (E) 88