Semi-Legend: “I liked LeoJEOSP’s rendition of the Princeton University football cheer: ‘Accost them, accost them, make them relinquish the ball.’ [BB. 11/7/2013] “It put me in mind of ...

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 ...