Which of the following regular expressions produce the language of all strings over Σ = {a,b} which do not contain four or more consecutive b's? Ⓒ (bbba+bba+ba+a)* O (bbba+bba+ba+a) (b) O (bbba+bba+ba+a)*(A+b+bb + bbb) O (bbba+bba+ba+a+ab+abb + abbb)*
Which of the following regular expressions produce the language of all strings over Σ = {a,b} which do not contain four or more consecutive b's? Ⓒ (bbba+bba+ba+a)* O (bbba+bba+ba+a) (b) O (bbba+bba+ba+a)*(A+b+bb + bbb) O (bbba+bba+ba+a+ab+abb + abbb)*
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:Q3
Which of the following regular expressions produce the language of all strings over > = {a,b}
which do not contain four or more consecutive b's?
Ⓒ (bbba +bba + ba + a)*
O (bbba +bba+ba+a)*(b*)
O (bbba+bba+ba+a)* (A+b+bb + bbb)
O (bbba +bba+ba+a+ ab + abb + abbb)*
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