You are given that cos(A) =-5/13 with A in Quadrant III, and

Last updated: 7/13/2022

You are given that cos(A) =-5/13 with A in Quadrant III, and cos(B) =8/17 with B in Quadrant I. Find cos(A + B). Give your answer as a fraction. Provide your answer below: cos (A + B))=