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
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
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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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ae8a81d-a7d2-4710-8da9-0de0f94786a9%2F939f7b77-1bbf-411a-bdf5-07f2e18b69aa%2Fevnqg1_processed.png&w=3840&q=75)
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ae8a81d-a7d2-4710-8da9-0de0f94786a9%2F939f7b77-1bbf-411a-bdf5-07f2e18b69aa%2Fwzmrhum_processed.png&w=3840&q=75)
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
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