Answer
$x \gt 3$
Work Step by Step
By the definition of the logarithmic function we can only take the logarithm of a positive number.
Hence, in the expression $\log_a {A}$ or $\ln {A}$, $A$ must be positive.
Thus,
$x-3\gt 0\\
x \gt 3$
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 - 5.4 Logarithmic Functions - 5.4 Assess Your Understanding - Page 295: 39
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