Answer
$\dfrac{\sqrt{10}}{5}$
Work Step by Step
Rationalize the denominator by multiplying $5$ to both the numerator and denominator inside the radical sign to have:
$=\sqrt{\dfrac{2(5)}{5(5)}}
\\=\sqrt{\dfrac{10}{5^2}}
\\=\dfrac{\sqrt{10}}{5}$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - 5.4 The Irrational Numbers - Exercise Set 5.4 - Page 296: 65
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
