a. The 10 th term of an arithmetic progression is 4 and the sum of the first
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a. The 10th term of an arithmetic progression is 4 and the sum of the first 7 terms is – 28. Find the first term and the common difference.
b. The first term of a geometric progression is 40 and the fourth term is 5. Find the sum to infinity of the progression.
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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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