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Databases A freelance computer consultant keeps a database of her clients, which contains the names S = { Aces , Bakers, Cores, Dual, Energy, Floyd,
Databases A freelance computer consultant keeps a database of her clients, which contains the names
S Aces Bakers, Cores, Dual, Energy, Floyd, Globe, Hide
These clients owe her money:
A Aces Cores, Energy, Globe
These clients have done at least $ worth of business with her:
B Aces Bakers, Cores, Dual
These clients have employed her in the last year:
C Aces Cores, Dual, Energy, 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
A Acap B
B Acup C
C A cap B
D A cup C
E Acap C
Incorrect: Your answer is incorrect.
List the clients in that subset.
AFloyd Bakers
B
CAces Cores
DAces Energy, Cores, Globe
EAces Energy, Cores, Globe, Bakers, Dual, Floyd, Hide
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