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marți, 2 decembrie 2025

Triple angle lemma, general problem of Nelson Tunala, https://www.facebook.com/photo?fbid=25136654412643032&set=a.542610499140765

 


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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 ...