Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 12 Sequences and Series - Cumulative Review - Page 848: 43

Answer

See below.

Work Step by Step

As we can see, $a_1=3$ and each term is four times the previous one, so $a_n=4a_{n-1}$ is the recursive rule.
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