This full solution covers the following key subjects: real, show. This expansive textbook survival guide covers 101 chapters, and 4221 solutions. The full step-by-step solution to problem: 49E from chapter: 2.3 was answered by , our top Math solution expert on 06/21/17, 07:45AM. Since the solution to 49E from 2.3 chapter was answered, more than 323 students have viewed the full step-by-step answer. The answer to “Show that if x is a real number, then” is broken down into a number of easy to follow steps, and 9 words. Discrete Mathematics and Its Applications was written by and is associated to the ISBN: 9780073383095. This textbook survival guide was created for the textbook: Discrete Mathematics and Its Applications, edition: 7.