Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 7 - Functions - Exercise Set 7.1 - Page 395: 23



Work Step by Step

We have that $b^3 = y$. Therefore, we can also say $(\frac{1}{b})^{-3} = y$, as the LHS is equal in both expressions. Therefore, by the definition of logarithm , the answer is $-3$.
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