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• 1985 IMO Problems/Problem 5
  ...cyclic, and so is BPOQ. Finally, we have <math>OM \perp MB</math>. ('''by gougutheorem''')
  3 KB (496 words) - 13:35, 18 January 2023
• 2024 AIME II Problems/Problem 12
  ...to show <math>PF*AD > AF*AO</math>. This is trivial by similarity ratios. ~gougutheorem
  10 KB (1,655 words) - 00:31, 11 April 2024