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UGC-NET | UGC NET CS 2018 Dec – II | Question 64

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Let r= a(a + b)*, s=aa*b and t=a*b be three regular expressions. Consider the following :

(i). L(s) ⊆ L(r) and L(s) ⊆ L(t)
(ii). L(r) ⊆ L(s) and L(s) ⊆ L(t) 

(A) Only (i) is correct
(B) Both (i) and (ii) are correct
(C) Only (ii) is correct
(D) Neither (i) nor (ii) is correct


Answer: (A)

Explanation:

Quiz of this Question
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Last Updated : 16 Sep, 2020
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