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P7C.A The operator corresponding to the angular momentum of a particle is
(h/i)d/dø, where o is an angle. For such a system the criterion for an operator
N to be hermitian is
p)dø
Show that (h/i)d/dø is a hermitian operator. (Hint: Use the same approach
as in the text; recall that the wavefunction must be single-valued, so

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