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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
For the regular languages and context free languages which is not correct?
A. both are closed under union operation
B. both are closed under concatenation operation
C. both are closed under intersection operation
D. both are closed under complementation operation
E. both are closed under kleene star operation
Solution
Regular languages:
Closed under union, concatenation, intersection, complement, kleene star.
Context-free languages:
Closed under union, concatenation, kleene star.
Not closed under intersection and complement.
Thus incorrect statements:
C and D
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