explain........... Determine which of the following is a tautology:b. -(A + B) + (A + B)d. AB + -AB + Aa. A-B + -B + Ac. -A(A-B) + -B(~AB)Pick ONE optionO A-B + -B + AO -(A + B) + (A + B)-A(A~B) + -B(-AB)O AB + -AB + AO None of them

Tautology can be defined as presenting the same data twice in one sentence.

Answered: Determine which of the following is a…

Determine which of the following is a tautology: b. -(A + B) + (A + B) d. AB + -AB + A a. A-B + -B + A c. -A(A-B) +-B(~AB)

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

explain...........

Determine which of the following is a tautology:
b. -(A + B) + (A + B)
d. AB + -AB + A
a. A-B + -B + A
c. -A(A-B) + -B(~AB)
Pick ONE option
O A-B + -B + A
O -(A + B) + (A + B)
-A(A~B) + -B(-AB)
O AB + -AB + A
O None of them

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