Find the sum of each of these arithmetic series. a. 2 + 9 + 16 +
Question:
Find the sum of each of these arithmetic series.
a. 2 + 9 + 16 + … (15 terms)
b. 20 + 11 + 2 … (20 terms)
c. 8.5 + 10 + 11.5 + … (30 terms)
d. – 2x – 5x – 8x - … (40 terms)
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a The sum of an arithmetic series is equal to the average of the first and last term multiplied b...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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