Beginner
Theory of Computation
Q5 / 100
What is a regular expression?
Correct! Well done.
Incorrect.
The correct answer is B) A pattern notation describing regular languages using union, concatenation, and Kleene star
B
Correct Answer
A pattern notation describing regular languages using union, concatenation, and Kleene star
Explanation
Regular expressions use ∪ (union), · (concatenation), and * (Kleene star) as basic operators. They describe exactly the class of regular languages.
Progress
5/100