Difference between revisions of "2018 AIME I Problems/Problem 13"
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Revision as of 16:59, 7 March 2018
Problem 13
Solution
Notice [AI1I2]=AB*AC *sin(IBC)*sin(ICB)*sin(BAC/2)/sin(AXB)>=AB*AC *sin(IBC)*sin(ICB)*sin(BAC/2)=126
