 #1
 672
 0
Homework Statement
See uploaded file
Homework Equations
See Uploaded file
The Attempt at a Solution
Ok problem 1 I have with the solution why is (KT/HC)^4 on the outside of the integral and why is it to the 4th power. I assume it is to find (lamda)^5 but I would think if that was the case it would be to the 5th power. My second issue is when I apply the series formula 1/(1epsilon) and make it 1/(1e^x) I end up x^3e^nx but it appears to be missing another e^(x). Then they do this derivative deal and get 1/a but I think it should be 1/a(e^ax). Anyways they continue on this path until they get 6/a^4 which is the answer to the series but why do they stop there I am confused . Then how did the get (pi)^4/90 in there and how do I get the actual answer? Sorry I know its a ton of questions but I am hopelessly lost.
Attachments

16 KB Views: 342