Evaluate the sum of the first 125 terms of the series whose nth term is equal to (2 n - 12).

are you asking the following? 125= (2N-12)?
if so, I would do the following:
125-12= 113
113/2= N
? I don't know just trying to help

Quote:

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Originally Posted by ms180sx

are you asking the following? 125= (2N-12)?
if so, i would do the following:
125-12= 113
113/2= N
? idk just trying to help

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Thank you I appreciate your help but it is incorrect the question is basically dealing with arithmetic series