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- ...the triangle are given by <math> (1,0,0) </math>, <math> (0,1,0) </math>, and <math> (0,0,1) </math>. Barycentric coordinates were discovered by Möbius ...lines given in the BC by the equations <math>k_1x + l_1y + m_1z = 0</math> and <math>k_2x + l_2y + m_2z = 0</math> intersect at the point34 KB (6,879 words) - 16:36, 2 February 2025
- ...iad for high school students. It consists of two rounds – correspondence and final. The correspondence round lasts 3 months. ...ympiads will be published. The numbering contains the year of the Olympiad and the serial number of the problem. Solutions are often different from the or46 KB (7,965 words) - 14:29, 17 November 2024