The Boolean expression (A·B)′ is equivalent to:

2023

The Boolean expression (A·B)′ is equivalent to:

  1. A.

    A′·B′

  2. B.

    A + B′

  3. C.

    A′·B

  4. D.

    A′ + B′

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Correct answer: D

Key idea: By De Morgan’s theorem, the complement of a product equals the sum of the complements. (A·B)′ = A′ + B′ Step 1: Identify the operation being complemented — this is a product (AND) of A and B.

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