An arithmetic sequence has first term a and common difference d. The sum of the first 25

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An arithmetic sequence has first term a and common difference d. The sum of the first 25 terms is 15 sums of the first 4 terms.

a. Find a in terms of d.

b. Find the 55^th term in terms of a.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 31, 2021 01:04 AM

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An arithmetic sequence has first term a and common difference d. The sum of the first 25

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a An arithmetic sequence is a sequence of numbers in which the difference between any two consecut...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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