#### Question

If the sum of the first *n* terms of an A.P. is `1/2`(3n^{2} +7n), then find its *n*^{th} term. Hence write its 20^{th} term.

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Solution for question: If the sum of the first n terms of an A.P. is 1/2 (3n^2 +7n), then find its nth term. Hence write its 20th term. concept: Sum of First n Terms of an AP. For the course CBSE