Answer
$\log_{2}7$
Work Step by Step
$( \log_{2}5)(\log_{5}7)=\frac{\log 5}{\log 2}*\frac{\log 7}{\log 5}=\frac{\log 7}{\log 2}=\log_{2}7$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 4, Exponential and Logarithmic Functions - Section 4.4 - Laws of Logarithms - 4.4 Exercises - Page 395: 70
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