Which of the following regular expression identities are true?
A. (r + s)* = r* s*
B. (r + s)* = r* + s*
C. (r + s)* = (r*s*)*
D. r* s* = r* + s*
Answer:C
Which of the following regular expression identities are true?
A. (r + s)* = r* s* B. (r + s)* = r* + s* C. (r + s)* = (r*s*)* D. r* s* = r* + s*