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sâmbătă, 1 ianuarie 2022

aops, Saudi Test 2010, https://artofproblemsolving.com/community/c6t48f6h2745136_dm_gt_ab2_if__ltb__gt__2lt_c

 


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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 ...