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Logic Circuit Simplification - Technical MCQs

Q1:

Which of the examples below expresses the commutative law of multiplication?

A A + B = B + A

B A • B = B + A

C A • (B • C) = (A • B) • C

D A • B = B • A

ANS:D - A • B = B • A

Commutative law:

A+B=B+A & AB=BA.

Associative law:
A+(B+C)=(A+B)+C.

Distributive law:
A(B+C) =AB+AC.