Graphs of Cosine and Sine. Cosine and sine of an angle θ are defined to be the x and y-coordinates of the point P on the unit circle with the property that the line from O to P makes and angle θ with ...

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

GCSE; Edexcel; Trigonometry - Edexcel Trigonometric graphs - Higher. The three trigonometric ratios; sine, cosine and tangent are used to calculate angles and lengths in right-angled triangles.