Consider the Following Identities for Regular Expressions: (A) (R

question 9

Multiple Choice

Consider the following identities for regular expressions: (a) (r + s) * = (s + r) * (b) (r*) * = r* (c) (r* s*) * = (r + s) * Which of the above identities are true?

• A)(a) and (b) only
• B)(b) and (c) only
• C)(c) and (a) only
• D)(a), (b) and (c)

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