If the sum of first m terms of an AP is `(2m^(2) + 3m)` then what is i – InterviewSolution

InterviewSolution

1.	If the sum of first m terms of an AP is `(2m^(2) + 3m)` then what is its second term?
Answer» Correct Answer - 9 `S_(m) = (2m^(2) +3m) rArr S_(1) = 2+3 = 5 "and" S_(2) = 2 xx 4 +3 xx 2 = 14.` `therefore T_(2) = S_(2) -S_(1) = 14-5 =9.`

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