The first term of a progression is 25 and the second term is 20. a. Given that

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The first term of a progression is 25 and the second term is 20.

a. Given that the progression is geometric, find the sum to infinity.

b. Given that the progression is arithmetic, find the number of terms in the progression if the sum of all the terms is – 1550.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 31, 2021 01:08 AM

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The first term of a progression is 25 and the second term is 20. a. Given that

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a The sum to infinity of a geometric progression can be calculated using the formula S a 1 r where ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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