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Question 64Asked in BEL PE Computer Science, 17 Dec 2023 (8:30 AM)

Which of the following identities of regular expression is NOT correct?

  1. AΛR = R
  2. Bφ + R = R
  3. CR* R* = R*
  4. DφR = R
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Correct answer: (D) φR = R

From BEL PE Computer Science PYQ, 17 Dec 2023 (8:30 AM)

This is question 64 of BEL PE Computer Science PYQ, 17 Dec 2023 (8:30 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.