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Reported Question / Answer
Q.) Regular expression (a | b ) (a | b) denotes the set
1)
{ a, b, ba, bb }
2)
{ a, b, ab, aa }
3)
{ aa, ab, ba, bb }
4)
{ a, b }
5)
NULL
Answer :
3
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Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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