In an arithmetic progression the 8th term is twice the 4th term and the 20th term is
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In an arithmetic progression the 8th term is twice the 4th term and the 20th term is 40. Find the common difference, d, and the sum of the first 10 terms.
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Lets call the common difference of the arithmetic progression d and the 1st t...View the full answer
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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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