if the sum of the nterms of an AP is 4n-n square ,what is the first term{i.e.S 1}.

Asked by  | 10th Mar, 2008, 10:31: PM

Expert Answer:

Sn= 4n- nsquare

therefore, S1= 4-1

                      = 3

Answered by  | 12th Mar, 2008, 01:38: PM

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