Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11 - 11.1 - Sequences and Series - 11.1 Exercises - Page 778: 51


$a_1=28$ $a_2=24$ $a_3=20$ $a_4=16$ $a_5=12$

Work Step by Step

$a_1=28$ $a_{k+1}=a_k-4$ $a_2=a_1-4=28-4=24$ $a_3=a_2-4=24-4=20$ $a_4=a_3-4=20-4=16$ $a_5=a_4-4=16-4=12$
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