A unit circle is an important part of trigonometry and can define right angle relationships known as sine, cosine and tangent.

Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions. With static graphs and equations, ...

A graph of a functions is a visual representation of the pairs (input, output), in the plane. This applet will help you to understand the connection between the graph of a function and a function as ...

Trigonometry - Edexcel Trigonometric graphs - Higher. ... This circle has the centre at the origin and a radius of 1 unit. ... As the point P moves anti-clockwise round the circle from (1, 0), ...

Trigonometry - Eduqas Trigonometric graphs - Higher. ... This circle has the centre at the origin and a radius of 1 unit. ... As the point P moves anticlockwise round the circle from (1, 0), ...