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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a The sum to infinity of a geometric progression can be calculated using the formula S a 1 r where ...View the full answer
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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