1. The problem statement, all variables and given/known data The question is posted below. 2. Relevant equations 3. The attempt at a solution I don't know how to solve this question.Does the breakdown voltage of a diode depends on the voltage source near the diode?For example,breakdown voltage of D1 in (a) is 30V? Also, I don't know how to determine the Vo either.If D2 in (a) is forward biasing,what is the value of Vo? Thanks!