RLM Q5
0. Which of the folowing pairs of regular expressions are equivalent?
- Option : D
- Explanation : Option (A) and option (B) are similar deriving expressions using rule :- (pq)*p = p(qp)* Option (C) will also be valid since:- (x+x*+) will be --->(xx*)(x*x**) --->(xx*)(x*x*) (Using x** = x*) --->(xx*)(x*) (Using x*x* = x*) --->(xx*) (Using x*x* = x*) --->x+ So, the answer will be all of these (Option D)
