Sin Cos Tan are designed exclusively for a digital interface; that’s not to mention trigonomic functions on a graphing calculator, but rather the Finnish synthpop duo consisting of Jori Hulkkonen and ...

Basic Identities. Sin 2 x + cos 2 x = 1. 1+tan 2 x = sec 2 x. 1+cot 2 x = cosec 2 x. Sign of Trigonometric Functions in Different Quadrants. Function. Quadrant. I. II. III. IV.

Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.

Learn and revise trigonometric ratios of sine, cosine and tangent and calculate angles and lengths in right-angled triangles with GCSE Bitesize AQA Maths.