GATE | GATE CS 2013 | Question 8
Consider the languages L1 = and L2 = {a}. Which one of the following represents L1 L2* U L1*
(A)
{}
(B)
(C)
a*
(D)
{,a}
Answer: (A)Explanation:
L1 L2* U L1* Result of L1 L2* is . {} indicates an empty language. Concatenation of with any other language is . It works as 0 in multiplication. L1* = * which is {}. Union of and {} is {}
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Last Updated :
28 Jun, 2021
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