Hello guys!
I'm new here, so sorry if I'm posting on wrong place or wrong way.
I just need help to solve a problem:
(∂E/∂V)β, N + β(∂p/∂β)N, V = - p
PS: There is a bar over E and over p (this in both sides) - meaning that is an average.
I don't know how to start, so any help will be amazing...