2 answers
1
Let $\text{A}$ be a finite set having $x$ elements and let $\text{B}$ be a finite set having $y$ elements. What is the number of distinct functions mapping $\text{B}$ int...
1 answer
4
( 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)*
2 answers
7