According to Boolean algebra the value of (A + AB) (B + AB ) is
A
AB
B
B
C
A
D
1
Correct Answer: AB
The formula A + B + C + D will yield true (1) if at least one of A,B,C,D is 1. The formula A./B.C will be true only if A = 1, B = 0 (so /B = 1) and C = 1. Boolean algebra knows two distributive laws with operations AND and OR.