1. The problem statement, all variables and given/known data The problem is Exercise 8 [PLAIN]http://postimage.org/image/6kpizm8dj/ [Broken][/PLAIN] 2. Relevant equations in picture The hint says "follow the steps as in the previous exercise, using the properties of (phi 1) and (phi 2) as already established". 3. The attempt at a solution I tried substituting in phi 1 and phi 2 to solve for beta and gamma but that didn't work.