Find a language (i.e., a set of strings) to describe each of the following regular expressions. a. a + b. b. a + bc. C. a + b*. d. ab* + c. e. ab* + bc*. f. a*bc* + ac.
Find a language (i.e., a set of strings) to describe each of the following regular expressions. a. a + b. b. a + bc. C. a + b*. d. ab* + c. e. ab* + bc*. f. a*bc* + ac.
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
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Transcribed Image Text:1. Book problem 1 (p. 747) all parts:
Find a language (i.e., a set of strings) to describe each of the
following regular expressions.
a. a + b.
b. a + bc.
C. a + b*.
d. ab* + c.
e. ab* + bc*.
f. a*bc* + ac.
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