1. The problem statement, all variables and given/known data for a weak shock wave (p2-p1)/p1=epsilon show that (s2-s1)/cv=(gamma^2-1)epsilon^3/(12*gamma^2)+higher order terms HINT: it is helpful to subtract this equation [p]/<p>+gamma[v]/<v>=0 from the equation [ln p(v)^gamma]=/cv before expanding in terms of epsilon [x]=x2-x1 <x>=(x1+x2)/2 2. Relevant equations 3. The attempt at a solution I subtracted the two equations given expanded the natural log terms according to ln ab=lna+lnb and taylor series series expansion and im stuck at a massive equation with square terms of p2 and p1 which is no where near the answer. any help!