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Q.No.2 (a) Is there any difference among Concatenation, Intersection Of Two FA's, Union of Two FA's and Addition of Them? Give Suitable example to justify

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Q.No.2 (a) Is there any difference among Concatenation, Intersection Of Two FA's, Union of Two FA's and Addition of Them? Give Suitable example to justify your answer. (10 Marks) (b) How can you define grammar? What are the elements of a grammar? Why we use grammars

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