Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 4 - Elementary Number Theory and Methods of Proof - Exercise Set 4.2 - Page 168: 12

Answer

See below.

Work Step by Step

Answer may vary. (a) an arbitrarily chosen rational number. (b) integers $a$ and $b$ (c) $(\frac{a}{b})^2$ (d) $b^2$ (e) zero product property. (f) $r^2$ is also a rational number
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