If you could please show your work I would appreciate that. I use Tau = (k_b)T if you use tau that would help but if not ill be able to work it out. Thanks!

2. Consider a degenerate electron gas in which essentially all of the electrons are highly relativis- tic (e > mc), so that their energies are e = pc (where p is the magnitude of the momentum vector). (a) Show that for the relativistic electron gas at zero temperature the chemical potential (or Fermi energy) is given by u=hac(3N/ #V)1/3 (b) Find a formula for the total energy of this system in terms of N and pl