Prove the identity of each of the following Boolean equations, using algebraic manipulation: (a) XY + XY + XY = X + Y (b) AB + BC + AB + BC = 1 (c) Y + XZ + XY = X + Y + Z (d) XY + YZ + XZ + XY + YZ = XY + XZ + YZ

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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6: Prove the identity of each of the following Boolean equations, using
algebraic manipulation:
(a) XY + XY + XY = X + Y
(b) AB + BC + AB + BC = 1
(c) Y + XZ + XY = X + Y + Z
(d) XY + YZ + XZ + XY + YZ = XY + XZ + YZ

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