a. Use this method to derive an expression for q, the expected waiting
time at a M/G/1 system with a last-come, first-served (LCFS) queue discipline. Assume
infinite queue capacity. Your result should of course be the same as (4.81), the
expression for 17V, for a M/G/1 system with FCFS queue discipline.
b. Use this method to derive expressions (4.111) and (4.112) for qk
case of a M/M/m queueing system with nonpreemptive priorities.
c. Use the same method for deriving expression (4.113) for qk in a M/M/1
system with preemptive priorities.