A geometric series has third term 27 and sixth term 8. a. Show that the common ratio

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A geometric series has third term 27 and sixth term 8.

a. Show that the common ratio of the series is 2/3

b. Find the first term of the series.

c. Find the sum to infinity of the series.

d. Find the difference between the sum of the first 10 terms of the series and the sum to infinity. Give your answer to 3 significant figures.

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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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Question Posted: Aug 08, 2023 07:59 AM

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A geometric series has third term 27 and sixth term 8. a. Show that the common ratio

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Lets denote the first term of the geometric series as a and the common ratio as r Given that the thi...View the full answer

Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

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