
Number Theory Number Theory Math Forum 
 LinkBack  Thread Tools  Display Modes 
June 10th, 2012, 10:40 AM  #1 
Newbie Joined: Jun 2012 Posts: 2 Thanks: 0  Proof of tricky infinite series
Salutations all. This question involves proving infinite series with differentiation, but I'm posting here because it's a proof question and so a harder question than just standard calculus which doesn't usually have proofs. I just have one issue with this question. I've been scratching my head out on how the solution got, deduced, or inferred the expression in the red box. Where on earth does it come from? In part (i), we proved But how on earth can you get a general expression for from this? I'm missing something?!!!?!? http://i47.tinypic.com/27ybvux.png 
June 10th, 2012, 10:41 AM  #2 
Newbie Joined: Jun 2012 Posts: 2 Thanks: 0  Re: Proof of tricky infinite series
Salutations again. Sorry, it doesn't look like I can post pictures. The link to my question is at the bottom of my post. Thank you all! 

Tags 
infinite, proof, series, tricky 
Search tags for this page 
math proof tricky,tricky mathematical proofs,tricky proofs in maths,Tricky question for infinite series,tricky questions on infinite series,tricky proofs,simple proving questions that look tricky,tricky infiNite series question
Click on a term to search for related topics.

Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Infinite Series  wannabe1  Real Analysis  2  December 1st, 2010 02:31 PM 
Infinite Series  Dr Grey  Calculus  4  August 3rd, 2010 11:10 AM 
A Tricky supposedly simple Proof  eserod  Number Theory  1  August 16th, 2007 10:20 PM 
Tricky proof  milin  Complex Analysis  4  May 7th, 2007 07:21 AM 
tricky proof..  jamesdoinghwk  Number Theory  3  April 8th, 2007 05:18 PM 