1) Let A = {x EN: x - 16 = 0}. Rewrite A in roster notation. %3D {4} |A| = 1 2) Let B = {x EZ:x² – 16 = 0}. Rewrite B in roster notation. {-4,4}

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
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1) Let A = {x EN: x - 16 = 0}. Rewrite A in roster notation.
{4}
\A| = 1
2) Let B = {x EZ:x² – 16 = 0}. Rewrite B in roster notation.
{-4,4}
\B\ = 2
3) Let C = {x E Z:x² - 48 = 0}. Rewrite C in roster notation.
|C| = 0
Transcribed Image Text:1) Let A = {x EN: x - 16 = 0}. Rewrite A in roster notation. {4} \A| = 1 2) Let B = {x EZ:x² – 16 = 0}. Rewrite B in roster notation. {-4,4} \B\ = 2 3) Let C = {x E Z:x² - 48 = 0}. Rewrite C in roster notation. |C| = 0
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