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[Post New]18 Jan 2008 15:56:21 IST
    Subject: Re:AP Doubt
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konichiwa2x (2327)

Blazing goIITian

Olaaa!! Perrrfect answer. 437  [508 rates]
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Let the terms of the AP be  with common difference 'd'.
 
Given that,
 
 
 
 
 
In general,   
 
Hence,
 
 
 
 and  
 
Simplify to get  ...
 
So the required AP is 
 
 
Guide to latex:
http://www.goiit.com/posts/list/community-shelf-a-guide-to-latex-48056.htm

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