(1) (a U b)* (a U €) b* O a'b O (a U b)* O (a U b)*b O (a U b)*ab*
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Simplify each of the following regular expressions.

Transcribed Image Text:Example: a ((a U b)(b U a))* U a ((a U b) a)* Ua ((b U a) b)*
Simplified regular expression: a ((a U b)(b U a))*

Transcribed Image Text:(1) (a U b)* (a UE) b*
a*b
O (a U b)*
O (a U b)*b
O (a U b)*ab*
Expert Solution

Step 1: Introduction
Given the regular expression:
- (a U b)* - This means zero or more instances of either 'a' or 'b'.
- (a U ε) - This can be either 'a' or the empty string.
- b* - This represents zero or more instances of 'b'.
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