Cosine and sine of an angle θ are defined ... cos(θ) is the x-coordinate of the point P and, sin(θ) is the y-coordinate of the point P. This applet shows how the graphs of sin(θ) and cos(θ) follow ...

The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

Graphs of Sine and Cosine 1.2 An applet illustrating how the graphs of sine ... Transformations are represented both algebraically and graphically. Construction of the Tangent to a Parabola 2.1 An ...

This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the \(y ...