Solving the Infinite Cubical Well: Griffiths QM Problem 4.2 (3rd edition) Solution FULLY EXPLAINED

In this video I will solve problem 4.2 as it appears in the 3rd edition of griffiths Introduction To Quantum Mechanics. The problem states the following:
Use separation of variables in cartesian coordinates to solve the infinite cubical well or particle in a box.
a) Find the stationary state wave functions and th ecorresponding energies
b) Call the distinct energies E1, E2, E3, in order of increasing energies. Find E1, E2, E3, E4, E5, E6. Determine the degeneracy of each of these energies.
c) What is the degeneracy of E13 and why is this case interesting?
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My name is Nick Heumann, I am a recently graduated physicist. I love to teach physics, so I decided to give YouTube a try. English is not my first language, but I hope that you can understand me well enough regardless.
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