Question: Devise a test to demonstrate the validity of the following trigonometric formulae. What values of A and B should be used to test these functions thoroughly?
(Part 1) Sin(A+B)=Sin(A)Cos(B)+Cos(A)Sin(B)
(Part 2) Sin^2(A)=1/2-1/2Cos(2A)
Answer this question and show each and every step with example.