sin x^\circ = \frac{3}{4}\) Since this is sin and is positive this means that we will be in the two quadrants in which the sine function is positive, ie the first and second quadrants.

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 ...