This circle has the centre at the origin and a radius of 1 unit. The point P can move around ... This is defined as \(\tan{\theta} = \frac{o}{a}\) and from the circle \(o = \sin{\theta}\) ...

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 ...