a. The sum, S n , of the first n terms of an arithmetic progression is given

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a. The sum, S_n, of the first n terms of an arithmetic progression is given by S_n = 11n − 4n². Find the first term and the common difference.
b. The first term of a geometric progression is and the fourth term is 1/12.

Find:
i. The common ratio
ii. The sum to infinity.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 11, 2023 06:15 AM

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a. The sum, S n , of the first n terms of an arithmetic progression is given

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a The sum of the first n terms of an arithmetic progression is given by Sn n22a n1d Where a is the f...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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