\(y = \sin (x - a)^\circ\) where \(a\) is called the phase angle. This is when the graph of the function has been shifted to the left or right by \(a\) degrees. If you have: \(\sin {(x - a)^ \circ ...

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 ...