UGC-NET | UGC NET CS 2017 Jan – III | Question 20

Consider the languages L1 = φ and L2 = {1}. Which one of the following represents
L*1∪ L*1 L*2 ?
(A) {∈}
(B) {∈, 1}
(C) φ
(D) 1*

Answer: (D)


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