Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Theory of Computation Regular Languages and Finite Automata Regular Languages
Which of the following statements about Regular Expression is/are incorrect?
A. The union of two regular expressions is also a regular expression
B. The concatenation of two regular expressions is also a regular expression
C. The iteration of a regular expression is also a regular expression
1
Only C
2
Only A
3
Both A and C
4
A, B and C
5
Question Not Attempted