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Could anyone clarify why this Boolean expression AB'+AB'AC' = AB'? I did not understand what happened to the C'

2 Answers2

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$$AB'+AB'AC'=AB'(1+AC')=AB'1=AB'$$

Bram28
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If $AB'$ is true, the $+$ will not change that.

If $AB'$ is false, then $(AB')(AC')$ is also false, no matter what $C'$ is. Then the entire expression is false, which is equal to $AB'$

Andrei
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