m 2m - 1 14.Given \sum_{n=1} a_n = \frac{2m - 1}{m + 2}, find the value of a_2. a) 1/4 b) 3/4 c) 5/12 d) 1 e) 1/3
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Step 1: Let S(m) = sum_{n=1}^m a_n = (2m - 1)/(m + 2). Show more…
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