Quiz (Multiple Angle Formulas)

Show all work and justify each step.

(1) Verify the identities:

    (a)
    
    (b)

    (c)

(2) Find all solutions to the equations that are in the interval [0, ).

    (a)
    
    (b)

(3) A graph of for is shown:



    (a) Find the
    
    (b) The -coordinates of the 13 turning points on the graph are solutions of Find these -coordinates.