Let A = {{0, g}. g. {y}. {o}. o}. 1. |A| = 5 2. Which of the following statements are true? There may be more than one correct answer. OA. {y} € A OB. {0, g} € A OC. {o} € A OD. {g} € A OE. 0 E A OF. gE A OG. y E A OH. Ø E A 3. Which of the following statements are true? There may be more than one correct answer. OA. {g} C A OB. oCA OC. y CA OD. {0} C A OE. {0, g} C A OF. {y} C A OG. g C A OH. ØC A

Let A = {{0, g}. g. {y}. {o}. o}. 1. |A| = 5 2. Which of the following statements are true? There may be more than one correct answer. OA. {y} € A OB. {0, g} € A OC. {o} € A OD. {g} € A OE. 0 E A OF. gE A OG. y E A OH. Ø E A 3. Which of the following statements are true? There may be more than one correct answer. OA. {g} C A OB. oCA OC. y CA OD. {0} C A OE. {0, g} C A OF. {y} C A OG. g C A OH. ØC A

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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Concept explainers

Hiring problem

The term "hire" means "to employ" or "to obtain services for a fee." When you hire someone, you are employing or paying them to perform a certain task for you. A step-by-step method for hiring a new employee is an efficient and successful hiring process in which a business determines its talent needs, recruits from its talent pool, and hires the best-qualified individuals. The hiring problem is a well-known decision-making problem in the analysis of algorithms. The problem is solved by designing an efficient algorithm to choose the best candidate from a list of n candidates.

Question

Let A = {{0, g}. g. {y}, {o}, o}.
1. |A| = 5
2. Which of the following statements are true? There may be more than one correct answer.
DA. {y} € A
OB. {o, g} € A
OC. {o} € A
OD. {g} € A
OE. 0 € A
OF. gE A
OG. y E A
OH. Ø E A
3. Which of the following statements are true? There may be more than one correct answer.
OA. {g} C A
OB. oCA
OC. y CA
OD. {o} C A
E. {o, g} C A
OF. {y} C A
G. g C A
OH. Ø C A
Hint:
|A| represents the cardinality of set A.
a E A if a is an element of set A.
• Let A and B be sets. A C B only if every element of set A is also an element of a set B.

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