Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Section 9.7 - Common Logarithms, Natural Logarithms, and Change of Base - Exercise Set - Page 585: 29

Answer

$\frac{1}{2}$

Work Step by Step

A natural logarithm is a logarithm to base $e$. As shown on page 582, when a natural logarithm is written in the form $ln (x)$, this is equivalent to the expression $log_{e}x$. Therefore, $ln \sqrt e=ln (e^{\frac{1}{2}})=log_{e}e^{\frac{1}{2}}=\frac{1}{2}$. We know this, because $(e)^{\frac{1}{2}}=e^{\frac{1}{2}}$.
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