1. Mar 17, 2010 #1

   phymatter

   131

   my book says that if sum of p terms of an ARTHMETRIC PROGRESSION is q and sum of q terms is p , then sum of p+q terms will be -(p+q) , but i am getting it as +(p+q),
   can someone verify it ?????

    
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3. Mar 17, 2010 #2

   jav

   35

   Can you post your work?
   
   Just messed around with it for a couple minutes and I got p+q+p*q*d where d is the common difference.

    

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