UGC-NET | UGC NET CS 2014 Dec – III | Question 24

Regular expression for the complement of language L = {an bm | n ≥ 4, m ≤ 3} is
(A) (a + b)* ba(a + b)*
(B) a* bbbbb*
(C) (λ + a + aa + aaa)b* + (a + b)* ba(a + b)*
(D) None of the above

Answer: (D)


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