Essential Questions (Inv. 2- Circular Motion & The Unit Circle):
How can we find the coordinates of any point on a Unit Circle (radius=1) given only the angle of rotation?
How can we use coordinates on a Unit Circle to find values for sine and cosine?
How do we graph the functions y=cosx and y=sinx?
How can we find the coordinates of any point on any circle given the radius and angle of rotation?

Be sure to check out the Interactive Unit Circle under "Useful Links" !