Which of the following regular expressions identifiers are true?

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Mr. Dubey • 52.43K Points
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Q. Which of the following regular expressions identifiers are true?

(A) (r*)* = r

(B) (r+s)* = r* . s*

(C) r*.s* = r* + s*

(D) (r.s)* = r*/s*

Correct Answer - Option(A)
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