The graph of y = sin θ The graph of y = sin θ has a maximum value of 1 and a minimum value of -1. The graph has a period of 360°. This means that it repeats itself every 360°.

This applet shows how the graphs of sin (θ) and cos (θ) follow directly from the definition of these functions. Move the slider to change the angle. Observe that after the point moves once around the ...