Calculus: Early Transcendentals 9th Edition

Published by Cengage Learning
ISBN 10: 1337613924
ISBN 13: 978-1-33761-392-7

Chapter 11 - Section 11.1 - Sequences - 11.1 Exercises - Page 735: 26

Answer

$2.1111, 2.2346, 2.3717, 2.5242, 2.6935, 2.8817, 3.0908, 3.3231, 3.5812, 3.8680$ The sequence has no limit or it diverges.

Work Step by Step

It is given a sequence formulated by $a_n=1+\frac{10^n}{9^n}$ Substituting $n$ from 1 to 10, we get the first ten terms of the sequence: $2.1111, 2.2346, 2.3717, 2.5242, 2.6935, 2.8817, 3.0908, 3.3231, 3.5812, 3.8680$ Observing these terms, the sequence does not appear to have a limit. Why? Because as $n$ goes to infinity, the value of $\frac{10^n}{9^n}=(\frac{10}{9})^n$ also goes to infinity. So, the sequence diverges. Thus, $\lim\limits_{n \to \infty}a_n=\infty$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.