a. Prove that the sum of the first n terms in an arithmetic series is where a

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a. Prove that the sum of the first n terms in an arithmetic series iswhere a = first term and d = common difference.

b. Use this to find the sum of the first 100 natural numbers.

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Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

ISBN: 9781292183404

1st Edition

Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran

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Question Posted: Aug 08, 2023 07:58 AM

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a. Prove that the sum of the first n terms in an arithmetic series is where a

Question:

n S = 27/(2a + (n − 1)d)

Step by Step Answer:

a Sn a a d a 2d a n 2d a n ...View the full answer

Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

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