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Consider the languages L1 = and L2 = {a}. Which one of the following represents L1 L2* U L1*?

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Consider the languages L1 =   and L2 = {a}. Which one of the following represents L1 L2* U L1*?

(a) €

(b) a*

(c) All of the mentioned

(d) None of the mentioned

I have been asked this question in quiz.

The doubt is from Minimization of DFA topic in section Finite Automata and Regular Expression of Compiler

1 Answer

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Right choice is (a) €

To elaborate: L1* =  * which is { }.

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