The sum of the second and third terms in a geometric progression is 84. The second term

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The sum of the second and third terms in a geometric progression is 84. The second term is 16 less than the first term. Given that all the terms in the progression are positive, find the first term.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 06:35 AM

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The sum of the second and third terms in a geometric progression is 84. The second term

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use this expression for r to solve for a Substituting into the first equation get aa 16 sqrta 1...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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