sir 1X1+[ 1X1+2X2]+[1X1+2X2+3X3]................. FIND SUM

Asked by era.singh | 7th Oct, 2009, 02:01: AM

Expert Answer:

Your question is already answered please go through below link
http://www.topperlearning.com/discussion-cat.php?event=cmlist&dscId=144&topId=24447&dstype=2

Answered by  | 7th Oct, 2009, 12:28: PM

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