Multiple choice general knowledge science & technology

In Boolean algebra, A. A=-----------

  1. A2

  2. A

  3. 0

  4. 1
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Boolean algebra, the AND operation (often denoted by multiplication or dot) follows the idempotent law: A · A = A. This means any Boolean variable ANDed with itself equals itself. Unlike regular algebra where A × A = A^2, Boolean algebra has only two values (0 and 1), so 0·0=0 and 1·1=1, hence A·A=A. Options A, C, and D violate this fundamental law.

Keep practicing — related questions