Recent content by LeFH18

Thank you so much! I did not realize that I could do that substitution. Doing that, I get the following: ## = \frac{i}{\varphi}(1-e^{\varphi i})## Expanding it into cosine and sine, and noting that ##(n-m)## is always an integer because ##n## and ##m## also are integers, it leads to the inner...

The textbook, "Mathematics for Physical Chemistry - Opening doors" (McQuarrie), solves this example exercise as follows: And is the case for n =/= m which I'm troubled with, because, if I solve the integral instead of using the cycles argument, I get that: And I can't see how this is equal...