CYCLIC INEQUALITY-685 Posted on December 28, 2019December 28, 2019 by ssmrmh Proposed by George Apostolopoulos-Messolonghi-Greece CYCLIC INEQUALITY-685 Solution 1 by Adrian Popa-Romania, Solution 2 by Tran Hong-Dong Thap-Vietnam, Solution 3 by Sanong Huayrerai-Nakon Pathom-Thailand