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ENGLISH
CURRENT AFFAIRS
APTITUDE
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which of the following pairs of regular expression are not equivalent
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Question
Which of the following pairs of regular expression are not equivalent?
A
(a+b)* and (a*+b)*
B
(a*+b)* and (a+b)*
C
(ab)*a and a(ba)*
D
none of the above
Answer & Explanation
Option: [D]
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