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Revision history of "Mock AIME 1 2010 Problems/Problem 1"

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  • (cur | prev) 18:42, 12 March 2010‎ Kevin Zhang (talk | contribs)‎ . . (834 bytes) (+834)‎ . . (Created page with 'Since <math>n^2 = 7k+4</math>, <math>n^2</math> is congruent to <math>4</math> mod <math>7</math>. Taking the square root of both sides, we obtain <math>n</math> is congruent to…')
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