The correct statements are:- [ ] The intersection of a regular language and a non-regular language must be regular.- [ ] If \( L_1 \) and \( L_2 \) are regular languages and \( L_1 \subseteq L \subseteq L_2 \), then \( L \) must be regular.- [ ] If \( L = L_1 \cap L_2 \) and \( L \) is regular, then \( L_1 \) and \( L_2 \) must be regular.- [ ] None of other statements are correct.

Regular languages are a type of language that can be recognised by a finite automata.Their…

The correct statements are: The intersection of a regular language and a non-regular language must be regular. If L₁ and L2 are regular languages and L₁ CLC L2, then L must be regular. If L = L₁ L₂ and L is regular, then L₁ and L₂ must be regular. None of other statements are correct.

The correct statements are: The intersection of a regular language and a non-regular language must be regular. If L₁ and L2 are regular languages and L₁ CLC L2, then L must be regular. If L = L₁ L₂ and L is regular, then L₁ and L₂ must be regular. None of other statements are correct.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

The correct statements are:

- [ ] The intersection of a regular language and a non-regular language must be regular.
- [ ] If \( L_1 \) and \( L_2 \) are regular languages and \( L_1 \subseteq L \subseteq L_2 \), then \( L \) must be regular.
- [ ] If \( L = L_1 \cap L_2 \) and \( L \) is regular, then \( L_1 \) and \( L_2 \) must be regular.
- [ ] None of other statements are correct.

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