Griffiths QM 2.27 Solution: Finding Transmission coefficient for double delta potential

In this video, I will solve problem 2.27 as it appears in the 3rd edition of Griffiths Introduction to Quantum Mechanics. In this problem, we have to find the transmission coefficient T for a double delta potential using the results from 2.26

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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.
▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
00:00 Explaining the problem
01:40 What is the transmission coefficient?
02:14 Boundary conditions
04:00 Explaining the discontinuity condition
17:00 Simplifying the expressions
23:20 Solving the system of equations
33:30 Simplifying the denominator