Practice - Reversal (LR)
Practice Questions
Test your understanding with targeted questions
What does reversing a string mean?
💡 Hint: Think about the order of the characters.
If L = { ab, a }, what is LR?
💡 Hint: Remember to reverse each string in L.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is LR if L = { ab, aba }?
💡 Hint: Apply the reversal definition to all elements.
True or False: The reversal of a language is always a regular language.
💡 Hint: Consider the properties of regular languages.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Prove that if L is a regular language, then LR is also regular by constructing a DFA for LR from the DFA of L.
💡 Hint: Sketch the original DFA and visualize its reversed structure.
Given L = { a^n b^n | n >= 0 }, discuss how the reversal LR would change the nature of the strings.
💡 Hint: Notice the balance of symbols while reversing.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.