Which regular expression matches a string containing "ab" followed by any number of occurrences of "a" or "b"? Options : (ab)+(a+b)* ab(a|b)* ab(a|b)+ none

Question

Which regular expression matches a string containing "ab" followed by any number of occurrences of "a" or "b"? Options : (ab)+(a+b)* ab(a|b)* ab(a|b)+ none
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Solution 1

The correct answer is "ab(a|b)*". This regular expression matches a string that starts with "ab" followed by any number (including zero) of "a" or "b". The "+" in the third option would require at least one more "a" or "b" after "ab", which is not specified in the question. The first option is incor Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob

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Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
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