Sines - Clark University This word history for sine is interesting because it follows the path of trigonometry from India, through the Arabic language from Baghdad through Spain, into western Europe in the Latin language, and then to modern languages such as English and the rest of the world
Sine — Definition, Formula Examples - Mathwords Sine is opposite over hypotenuse, cosine is adjacent over hypotenuse, and tangent is opposite over adjacent They are related by the identity tan θ = sin θ cos θ