1.

Let the series be 121+12+221+2+12+22+321+2+3+…. Then(where Tn and Sn denote the nth term and sum upto nth term respectively.)

Answer»

Let the series be 121+12+221+2+12+22+321+2+3+. Then



(where Tn and Sn denote the nth term and sum upto nth term respectively.)



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