The sum of the first six terms of an arithmetic progression is 51 and the sum of
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The sum of the first six terms of an arithmetic progression is 51 and the sum of the first 12 terms of the same progression is 282. Find the 1st term and the common difference, d.
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Related Book For
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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