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Question 9742 – Theory-of-Computation
December 6, 2023
Question 9744 – Theory-of-Computation
December 6, 2023
Question 9742 – Theory-of-Computation
December 6, 2023
Question 9744 – Theory-of-Computation
December 6, 2023

Question 9743 – Theory-of-Computation

Which of the following statements is true?

Correct Answer: B

Question 48 Explanation: 
Context free languages closed under Union, concatenation and kleen star. But not close under intersection and complementation.
A
If a language is context free it can always be accepted by a deterministic push-down automaton
B
The union of two context free languages is context free
C
The intersection of two context free languages is context free
D
The complement of a context free language is context free
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