Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 4 - Section 4.4 - Solving Congruences - Exercises - Page 284: 1

Answer

True.

Work Step by Step

Since $15*7=105$ which is $4*26+1$,meaning 1 mod 26, 15 is by definition an inverse of 7 mod 26.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.