**Problem Statement**Let \( A_1 \) be the language defined as follows:\[ A_1 = \{ x \in \{0,1\}^* \mid \text{the number of 0s in } x \text{ is } 4k+1 \text{ for some integer } k \} \]Which of the following regular expressions represents \( A_1 \)?**Options:**1. \((1^*01^*01^*01^*01^*)^*\)2. \(1^*0(1^*01^*01^*01^*)^*\)3. \(1^*0(1^*0000)^*\)4. \((1^*01^*01^*01^*01^*)^*0\)

We are given a regular expression which states that it represents the languages having number of 0's…

Answered: Let A, be the language defined as…

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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Let A, be the language defined as follows: A1 ={ xe{0,1}" | the number of Os in x is 4k+1 for some integer k} Which of the following regular expressions represents A,? O (1'01'01'01'01)y01 O 1'0(1'01'01'01'01) O 1'0(1'00001")" O (1'01'01'01'01")o