Which of the following regular expressions defines a language over {A,B} containing every string with an even number of A's? O (A|B)(A|B)* O A (BA*BA*)* O (AA|B)* (АВАВ)* O All of the above O None of the above O I don't know

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
icon
Related questions
Topic Video
Question

Haskell questions, i need the answers as soon as possible please thank you

Consider the following context-free grammar with starting non-terminal Sentence:
Sentence ::= NP VP NP | NP VP | VP NP NP
NP
::= Article Noun
Article
"a"
| "the"
| "my"
::=
Article
::=
::= "dog" "cat" | "fleas"
::= Modal Verb
%3D
Noun
VP
Modal
::= "can"
"will"
Modal
::=
Verb
::= "has"| "have" |
'want'
Is this grammar deterministic?
Yes, because it is always clear whether a strings belongs to the language or not
Yes, because each string can be interpreted only one way
No, because at least two parse trees correspond to the same string
No, because it is not determined whether a string is part of the language or not
All of the above
None of the above
I don't know
Transcribed Image Text:Consider the following context-free grammar with starting non-terminal Sentence: Sentence ::= NP VP NP | NP VP | VP NP NP NP ::= Article Noun Article "a" | "the" | "my" ::= Article ::= ::= "dog" "cat" | "fleas" ::= Modal Verb %3D Noun VP Modal ::= "can" "will" Modal ::= Verb ::= "has"| "have" | 'want' Is this grammar deterministic? Yes, because it is always clear whether a strings belongs to the language or not Yes, because each string can be interpreted only one way No, because at least two parse trees correspond to the same string No, because it is not determined whether a string is part of the language or not All of the above None of the above I don't know
Which of the following regular expressions defines a language over {A,B} containing every string with an even number of A's?
O ((A|B)(A|B))*
O A*(BA*BA*)*
O (AA|B)*
О АВАВ)"
O All of the above
None of the above
O I don't know
Transcribed Image Text:Which of the following regular expressions defines a language over {A,B} containing every string with an even number of A's? O ((A|B)(A|B))* O A*(BA*BA*)* O (AA|B)* О АВАВ)" O All of the above None of the above O I don't know
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Instruction Format
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education