Mi ERROR resolvió un problema muy DIFÍCIL de geometría.

In this video, I explain my method for analyzing a difficult math olympiad problem. We'll analyze the problem step by step until we solve it. However, I made a mistake along the way. At the end, I'll explain what that mistake was and how it helped me ultimately solve the problem correctly. Problem from the 2025 Mexican National Women's Competition of the Mexican Math Olympiad. Course: Mathematical Thinking from Scratch.    • Curso: Pensamiento matemático (desde cero).   Link to YouTube channel membership.    / @matematicasnuevoleon   Patreon Link:   / matematicas_en_nuevo_leon   Outro Song (Good & Bad)    • Bueno & Malo | Obra #3