Which of the following represents the Idempotent law in Boolean Algebra?
2018
Which of the following represents the Idempotent law in Boolean Algebra?
- A.
A + 0 = A
- B.
A + A = A
- C.
A + A' = 1
- D.
(A')' = A
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Correct answer: B
The Idempotent Law in Boolean Algebra states that a variable combined with itself using OR or AND operations yields the same variable. Specifically, A + A = A and A * A = A hold true for any boolean value of A. Therefore, the option stating A + A = A correctly represents this fundamental law.