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Consider a one-particle, one-dimensional system with V = ∞ for x < 0, V = ∞ for x > a, and V = kx for 0 ≤ x ≤ a, where k is small. Treat the system as a perturbed particle in a box and find E(0)n + E(1)n for the state with quantum number n. Show full and complete procedure in a clear way. Do not skip any steps

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