csc² ω = csc² A + csc² B + csc² C
ω is the Brocard angle of the triangle. A, B, C are the angle measures of the triangle. a, b, c are the side lengths of the triangle. L₁, L₂, L₃ are the lengths between the vertices and the Brocard point (labeled D). #math #maths #mathematics #geometry #trigonometry