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sâmbătă, 31 ianuarie 2026

AOPS, https://artofproblemsolving.com/community/c4t48f4h3757954_cyclic_quadrilaterals_strike_again

 


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Mi Prepa, https://www.facebook.com/photo?fbid=1427344626075511&set=a.575642501245732

  Mi Prepa, https://www.facebook.com/photo?fbid=1427344626075511&set=a.575642501245732 In the interior of triangle ABC having ...