Question: (a) Find the second-order correction to the energies (E 2 n ) for the potential in Problem 7.1. Comment: You can sum the series explicitly,

(a) Find the second-order correction to the energies (E²_n) for the potential in Problem 7.1. Comment: You can sum the series explicitly, obtaining

for odd n.
(b) Calculate the second-order correction to the ground state energy (E²₀) for the potential in Problem 7.2. Check that your result is consistent with the exact solution.

- 2m (/hn)

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