OIM 2023 Problem 4
Sejam e dois pontos fixos no plano. Para cada ponto do plano, fora da reta , seja o baricentro do triângulo . Determine o lugar geométrico dos pontos tais que .
Nota: O lugar geométrico é o conjunto dos pontos do plano que satisfazem a propriedade.
Official text Iberoamerican Mathematical Olympiad 2023 official paper, page 2. Quoted with source.
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