The fifth term of an arithmetic series is 14 and the sum of the first three terms
Question:
The fifth term of an arithmetic series is 14 and the sum of the first three terms of the series is –3.
a. Use algebra to show that the first term of the series is –6 and calculate the common difference of the series.
b. Given that the nth term of the series is greater than 282, find the least possible value of n.
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Related Book For
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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