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The regular expression denotes a language comprising all possible strings of even length over the alphabet (0, 1).(a) 1 + 0(1+0)*(b) (0+1) (1+0)*(c) (1+0)(d) (00+0111+10)* |
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Answer» The correct answer is (d) (00+0111+10)* To elaborate: Option 1 + 0(1+0)* → It does not consider even length criteria for the question. Option (0+1) (1+0)* → It can so happen here that from the former bracket it takes 0 or 1 and takes null from the latter then it forms a string of odd length Option (1+0) → It gives either 1 or 0. Hence Option (00+0111+10)* is the answer. |
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