Advanced Placement (AP) Computer Science 2025 – 400 Free Practice Questions to Pass the Exam

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How does the NOT Boolean operator evaluate an input of true?

The output is unfixed

The output is true

The output is false

The NOT Boolean operator is a unary operator that inverts the truth value of a given input. When it evaluates an input of true, it switches that value to false. This behavior is fundamental to how Boolean logic operates, as NOT effectively negates the state of the input.

Understanding this, when the input to the NOT operator is true, applying NOT will yield false. Thus, if you were to express this logically, it can be written as NOT(true) = false. This fundamental concept is crucial in programming and logic design, where decision-making often relies on the manipulation of Boolean values.

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The output is null

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