Math, asked by am79197, 1 year ago

Q3. Find the sum of n terms of the series:- (a) 3 + 15 + 35 + 63 + ………………..

(b) 1 + 3 + 6 + 10 + 15 + ………………….. (c) 2 +5 + 10 + 17 + 26 + …………

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Answered by foxee2005

2

Answer:

and à is 116 thanks it will help you

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