0 votes
1 answer
1
0 votes
1 answer
2
1 votes
1 answer
3
( a*+b*+a*b*+b*a* ) can we derive string abab and abba from this regular expression. what is the relationship between ( a*+b*+a*b*+b*a* ) and (a+b)*
1 votes
2 answers
4
4 votes
2 answers
5