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Q.
Production Rule: aAb->agb belongs to which of the following category?

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MCQ
1.
Which of the following are context free?

A = {anbnambm | m, n>=0}
B = {ambnambn | m, n>=0}
C = {ambn | m?2n,m, n>=0}
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2.
Match the following:

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3.
Which one of the following statement is FALSE?
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4.
If the strings of a language L can be effectively enumerated in lexicographic (i.e., alphabetic) order, which of the following statements is true ?
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5. 
Let P be a regular language and Q be context-free language such that Q 	\subseteq P. (For example, let P be the language represented by the regular expression p*q* and Q be {pnqn|n \in N}). Then which of the following is ALWAYS regular?
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