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Revision history of "2014 AIME II Problems/Problem 12"

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  • (cur | prev) 21:48, 27 March 2014‎ Sat113 (talk | contribs)‎ . . (899 bytes) (+899)‎ . . (Created page with "Obviously, <math>A+B+C=180</math> in degrees. Note that <math>\cos{3C}=-\cos{(3A+3B)}</math>. Thus, our expression is of the form <math>\cos{3A}+\cos{3B}-\cos{(3A+3B)}=1</math>. ...")
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