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Solution - 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. - CBSE Class 10 - Mathematics

ConceptSum of First n Terms of an AP

Question

If the sum of the first n terms of an A.P. is `1/2`(3n2 +7n), then find its nth term. Hence write its 20th term.

Solution

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Reference Material

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
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