Graphs of Sine and Cosine 1.2 An applet illustrating how the graphs ... but do you know why? This applet gives some pretty compelling visual evidence to suggest why. Of course, a rigorous argument ...

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 ...

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 ...