Intermediate Algebra (6th Edition)

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

Chapter 1 - Section 1.2 - Algebraic Expressions and Sets of Numbers - Exercise Set: 35

Answer

$\sqrt 7$

Work Step by Step

Simply put, an irrational number is any real number that isn't a rational number. That is to say, it is any number that can't be expressed as $\frac{a}{b}$, where $a$ and $b$ are both integers and $b\ne0$.
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