October 24th, 2017, 03:19 PM  #1 
Newbie Joined: Oct 2017 From: Hamburg Posts: 2 Thanks: 1  Fourier Analysis problem
Hey folks, I don't get to the right result. I think that I've made an algebraic mistake somewhere. Checked it many times. Can anyone help me? Not sure if this is the right way to get help here. Please correct me if I am doing something wrong! Thanks! Last edited by gunjah292; October 24th, 2017 at 03:25 PM. 
October 24th, 2017, 05:17 PM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,502 Thanks: 2511 Math Focus: Mainly analysis and algebra 
Line 3 of $b_n$ derivation. $2\cos n\pi$ should be $\cos 2n\pi$.

October 25th, 2017, 01:05 AM  #3 
Newbie Joined: Oct 2017 From: Hamburg Posts: 2 Thanks: 1 
Thanks a lot! I should always put the arguments in brackets, as long as I am not sure with the algebra yet.


Tags 
analysis, fourier, problem 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Fourier analysis  zell^  Real Analysis  1  March 22nd, 2014 02:36 PM 
Fundamentals of Fourier Series / Analysis  durraniu  Academic Guidance  0  June 6th, 2013 09:12 AM 
Fourier Analysis  zell^  Calculus  4  December 27th, 2012 12:52 PM 
Fourier Analysis  gaz1984  Calculus  1  October 7th, 2011 04:59 AM 
Problem with fourieranalysis  HPJensen  Real Analysis  3  March 30th, 2007 04:57 AM 