The 20th term of an arithmetic progression is 41 and the sum of the first 20 terms
Question:
The 20th term of an arithmetic progression is −41 and the sum of the first
20 terms is −440. Work out the sum of the first 10 terms.
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Let the first term of the arithmetic progression be denoted by a and the common diff...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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