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 55th term in terms of a.
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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
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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