Multivariable Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 0-53849-787-4
ISBN 13: 978-0-53849-787-9

Chapter 11 - Infinite Sequences and Series - Review - True-False Quiz - Page 803: 18

Answer

TRUE

Work Step by Step

$\lim\limits_{n \to \infty}\frac{a_{{n+1}}}{a_{n}}\lt 1$ For this to be true, $a_{n}$ must be decreasing. $a_{n+1}\lt a_{n}$ and since $a_{n}=0$, $\lim\limits_{n \to \infty}a_{n}=0$ must be true because while $a_{n}$ is decreasing, it cannot go to exactly or below $0$. Hence, the statement is true.
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