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Theory of Compu...

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  • Question 1
    1 / -0

    The string 1101 does not belong to the set represented by:

  • Question 2
    1 / -0

    Let P, Q R be a regular expression over ∑ If P does not contain null string, then R = Q + RP has a unique solution ____

  • Question 3
    1 / -0

    Which of the following regular expression is equal to (r1 + r2)*?

  • Question 4
    1 / -0

    Which of the following is equivalent regular expressions?

    (i) ((01)*(10)*)*

    (ii) (10 + 01)*

    (iii) (01)* + (11)*

    (iv) (0* + (11)* + 0*)*)

  • Question 5
    1 / -0

    Let L, M be any two context-free languages and X be any regular language. 

    I. M – X is context-free

    II. L ∪ M is context-free

    which of the following from the above statement is/are CORRECT?

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