Why are Sine & Cosine given their names? Channel: Eddie Woo983K views • 13/06/2015Related VideosWhere do Sin, Cos and Tan Actually Come From - Origins of Trigonometry - Part 1Trig Visualized: One Diagram to Rule them All (six trig functions in one diagram)Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent