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UGC-NET | UGC NET CS 2018 Dec – II | Question 7
Consider the following two languages:
L1 = {x | for some y with | y| = 2|x| , xy ∈ L and L is regular language}
L2 = { x | for some y such that |x| = |y| , xy ∈ L and L is regular language}
Which one of the following is correct?
(A)
Both L1 and L2 are regular languages
(B)
Both L1 and L2 are not regular languages
(C)
Only L1 is regular language
(D)
Only L2 is regular language
Answer
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