The 7th term of an arithmetic progression is 20. The 1st, 3rd and 11th terms of the
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The 7th term of an arithmetic progression is 20. The 1st, 3rd and 11th terms of the arithmetic progression are the first three terms of a geometric progression. Find the common ratio, r, of this geometric progression.
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ANSWER Lets start by using the formula for the nth term of an arithmetic progression an a1 n1d where ...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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