Graphs of Cosine and Sine. Cosine and sine of an angle θ are defined to be the x and y-coordinates of the point P on the unit circle with the property that the line from O to P makes and angle θ with ...

Save guides, add subjects and pick up where you left off with your BBC account. In a function such as sine or cosine, we could also have a translation of the form: \(y = \sin (x - a)^\circ\) where ...