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ETC POINTS
X(73202) = DAO'S POINT OF ROUSSEL'S HEXAGON Barycentrics Sin[A]*(2*Cos[A/3]*Cos[(2*(B - C))/3]*Cos[2*A - Pi/6] + Cos[(4*(B - C...
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Let ABC be a triangle. Denote: (N1),(N2), (N3) = the NPCs of IBC, ICA, IAB, resp. (12), (13) = the reflections of (N1) in BI, CI, resp. ...
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Theorem 1. Let ABC be an equilateral triangle and P a point. The Euler lines of the triangles PBC,PCA,PAB are concurent.Denote the point ...



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