Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: IIT 2007 Q!!!!!!!!!
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Avinash Bhat (743)

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YOUR QUESTION IS JUST TO FIND Vr

First term  =  r

Common Difference  =  ( 2r - 1 )

Sum of first r terms  =  Vr 

                              =  ( r / 2 )( 2r  +  (r - 1)(2r - 1) )

YOU WANT TO GET INTO IIT??? I WILL HELP YOU....
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