- #1

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## Homework Statement

If dU=TdS-PdV then

(dS/dV)T=(dP/dT)V

the T and V at the end means that T and V are constant

How did they get this identity? It came from a thermodynamics hence for their notations.

I have tried ways like rearranging but it dosen't seem to work. I think it has something to do with exact differentials.