Which of the following best describes the value of the Boolean expression: a && !(b || a) The value is always true. The value is always false. The value is true when a has the value false, and is false otherwise.

Which of the following best describes the value of the Boolean expression: a && !(b || a) The value is always true. The value is always false. The value is true when a has the value false, and is false otherwise.

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

Which of the following best describes the value of the Boolean expression: a && !(b ||
a)
The value is always true.
The value is always false.
The value is true when a has the value false, and is false otherwise.
The value is true when b has the value false, and is false otherwise.
The value is true when either a or b has the value true, and is false otherwise.

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