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8. Show that the following two numbers add to unity: (i) the mean occupation of a Fermion orbital distant E below the chemical potential (it)

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8. Show that the following two numbers add to unity: (i) the mean occupation of a Fermion orbital distant E below the chemical potential (it) the mean occupation of a Fermion orbital distant E above the chemical potential J. Here E is an arbitrary energy and you are intended to solve this problem using the Fermi distribution at arbitrary temperature T

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