2.Identify the Idempotent Law for AND and OR.AND: xx¹ = 0 and OR: x + x = 1AND: xy = yx and OR: x + y = y + xAND: xx = x and OR: x + x = XAND: 1x = x and OR: 0 + X = X

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2. Identify the Idempotent Law for AND and OR. AND: xx¹ = 0 and OR: x + x' AND: xy = yx and OR: x + y = y + x AND: xx = x and OR: x + x X AND: 1x = x and OR: 0 + x = x

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

2.
Identify the Idempotent Law for AND and OR.
AND: xx¹ = 0 and OR: x + x = 1
AND: xy = yx and OR: x + y = y + x
AND: xx = x and OR: x + x = X
AND: 1x = x and OR: 0 + X = X

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