Originally Posted by
ZGOON i was given this qn.... sin(A-B) = k sin(A+B)
sin(A-B) = sinAcosB + sinBcosA
= 1/2[sin(A+B)+sin(A-B)] - 1/2[sin(A+B)-sin(A-B)]
im not sure if im on the right track. cant seem to continue cos i will always return to sin(A-B)
PLEASE HELP!