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  • UGC NET June 2004 - Computer Science Paper 2
  • Which of the following pairs of regular expressions is no...
Multiple choice

Which of the following pairs of regular expressions is not equivalent?

  1. (ab)* a and a (ba)*

  2. (a + b)* and (a* + b)*

  3. (a* + b)* and (a + b)*

  4. None of the above

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D Correct answer

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