Answer
$\log_a{2.1}=3$
Work Step by Step
RECALL:
$b^x=y \longrightarrow \log_b{y}=x$
Use the rule above to obtain:
$a^3=2.1 \longrightarrow \log_a{2.1}=3$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 4 - Exponential and Logarithmic Functions - Section 4.4 Logarithmic Functions - 4.4 Assess Your Understanding - Page 320: 12
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