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Patrulatere inscriptibile

Posted: Thu Feb 05, 2009 9:31 pm
by alex2008
Sa se arate ca orice patrulater convex poate fi impartit in \( n\ge 4 \) patrulatere inscriptibile .

Posted: Thu Feb 05, 2009 9:37 pm
by enescu
IMO 1972, problema 2