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JNU CS M.Phil 2019 Shift-1
October 26, 2023
JNU 2018-1 PhD CS
October 26, 2023
JNU CS M.Phil 2019 Shift-1
October 26, 2023
JNU 2018-1 PhD CS
October 26, 2023

JNU 2018-1 PhD CS

Question 1
Recursively enumerable languages are not closed under
A
concatenation
B
complement
C
union
D
homomorphism
Question 1 Explanation: 
Recursively enumerable languages are closed under concatenation,union,homomorphism but not closed under complementation
Correct Answer: B
Question 1 Explanation: 
Recursively enumerable languages are closed under concatenation,union,homomorphism but not closed under complementation

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