The expression for commutative law is given by:
2020
The expression for commutative law is given by:
- A.
A + AB = A
- B.
AB + AA′ = A
- C.
A + B = B + A
- D.
A + AB = B
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Correct answer: C
The Commutative Law states that changing the sequence of variables in a logical operation does not affect the final output. In Boolean algebra, this applies to both OR (addition) and AND (multiplication) gates:
OR operation: A + B = B + A
AND operation: A . B = B . A
Thus, the correct expression matching the law is given in Option C.