For every two regular expressions r¡ and r2 which of the following are true?Lütfen bir ya da daha fazlasını seçin:(ri + r2)* and (rı + r2). (rị + E*) are equivalent.O ri +r and r. are equivalent.*(ri + r2)* and (r1. r2)* are equivalent.(ri + r2)* and r*.r* are equivalent.2None of them are true.

Here i take all option and explain is it equivalent:…

For every two regular expressions r¡ and r2 which of the following are true? Lütfen bir ya da daha fazlasını seçin: (ri + r2)* and (rı + r2). (rị + E*) are equivalent. ri +r, and ri. r, are equivalent. O (ri + r2)* and (r1. r2)* are equivalent. O (ri + r2)* and r*. r are equivalent. None of them are true.

For every two regular expressions r¡ and r2 which of the following are true? Lütfen bir ya da daha fazlasını seçin: (ri + r2)* and (rı + r2). (rị + E) are equivalent. ri +r, and ri. r, are equivalent. O (ri + r2) and (r1. r2)* are equivalent. O (ri + r2)* and r*. r are equivalent. None of them are true.

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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