Databases A freelance computer consultant keeps a database of her clients, which contains th S = {Aces, Brothers, Cores, Dual, Effigy, Flavour, Globe, Hide}. These clients owe her money: A = {Aces, Cores, Effigy, Globe}. These clients have done at least $3,000 worth of business with her: B = {Aces, Brothers, Cores, Dual}. These clients have employed her in the last year: C = {Aces, Cores, Dual, Effigy, Globe, Hide}. A subset of clients is described that the consultant could find using her database. The clients who do not owe her money or have employed her in the last year. Write the subset in terms of A, B, and C. O A' UC O An B O AUC O A'n B A' C
Databases A freelance computer consultant keeps a database of her clients, which contains th S = {Aces, Brothers, Cores, Dual, Effigy, Flavour, Globe, Hide}. These clients owe her money: A = {Aces, Cores, Effigy, Globe}. These clients have done at least $3,000 worth of business with her: B = {Aces, Brothers, Cores, Dual}. These clients have employed her in the last year: C = {Aces, Cores, Dual, Effigy, Globe, Hide}. A subset of clients is described that the consultant could find using her database. The clients who do not owe her money or have employed her in the last year. Write the subset in terms of A, B, and C. O A' UC O An B O AUC O A'n B A' C
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Databases A freelance computer consultant keeps a database of her clients, which contains the names
S = {Aces, Brothers, Cores, Dual, Effigy, Flavour, Globe, Hide}.
These clients owe her money:
A = {Aces, Cores, Effigy, Globe}.
These clients have done at least $3,000 worth of business with her:
B = {Aces, Brothers, Cores, Dual}.
These clients have employed her in the last year:
C = {Aces, Cores, Dual, Effigy, Globe, Hide}.
A subset of clients is described that the consultant could find using her database.
The clients who do not owe her money or have employed her in the last year.
Write the subset in terms of A, B, and C.
O A' UC
An B
O AUC
O A'n B
O A' n C
List the clients in that subset.
{Flavour, Brothers}
{Aces, Effigy, Cores, Globe, Brothers, Dual, Flavour, Hide}
{Aces, Effigy, Cores, Globe}
{Aces, Cores}
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