Introduction to Quantum Mechanics · Problem 4.24

Quantum Mechanics in Three Dimensions — David J. Griffiths

Physics — Quantum Mechanics · angular_momentum_operators

Problem

(a) Derive Equation 4.131 from Equation 4.130. Hint: Use a test function; otherwise you're likely to drop some terms. (b) Derive Equation 4.132 from Equations 4.129 and 4.131. Hint: Use Equation 4.112.

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