Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 12 - Review - Exercises - Page 890: 21

Answer

4/27 and geometric

Work Step by Step

When we divide consecutive terms we see there is a common ratio existent which is 2/3. Thus the sequence is geometric and the 4th term is $2/9\times2/3$. That is 4/27.
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