Answer
$-13$
Work Step by Step
We know that $\log_a{(a^x)}=x$.
Hence, $\log_2 {\left(2^{-13}\right)}=-13.$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.5 Properties of Logarithms - 5.5 Assess Your Understanding - Page 305: 14
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