The document describes 4 logic circuit exercises involving Boolean logic expressions and truth tables: 1) Exercise 1 involves the expression A'B'C'+AB+BC+AC. 2) Exercise 2 simplifies the expression A'B'+AB+AD' to a simplified form. 3) Exercise 3 simplifies the expression A'B'+A'B+AC+AB' to a simplified form. 4) Exercise 4 involves the expression AC'+AB'C'+C'D+BD.

1. Exercicis circuits lògics fets a classe
Exercici 1: A’B’C’+ AB + BC + AC
A
0
0
0
0
1
1
1
1
B
0
0
1
1
0
0
1
1
C
0
1
0
1
0
1
0
1
S
1
0
0
1
0
1
1
1

2. Exercici 2: A’B’ + AB + AD’ (simplificat)
A
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Exercici 3
Exercici 4
B
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
S
1
1
1
1
0
0
0
0
1
0
1
0
1
1
1
1

3. Exercici 3: A’B’ + A’B + AC +AB’ (simplificat)
A
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
S
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1

4. Exercici 4: AC’ + AB’C’ + C’D + BD
A
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
S
0
1
1
1
0
0
1
0
1
1
0
1
1
1
0
1