The following relationship is known to be true for two angles A and B:
Express A in terms of the angle B. Work in degrees and report numeric values accurate to 2 decimal places.
Enter your answer as an expression. Be sure your variables match those in the question.
So I'm pretty lost on how to even begin this problem. I do know the sum and difference identities such as cos(a+b)=cos(a)cos(b)-sin(a)sin(b)
Any help is greatly appreciated!