- X
- 1
- 0
- X’

Option 3 : 0

With hundreds of Questions based on Logic Gates and Boolean Algebra, we help you gain expertise on Digital Electronics. All for free. Explore Testbook Learn to attain the subject expertise with us.

From the laws of Boolean algebra

X + X’ = 1

X.X’ = 0

X + 1 = 1

X + 0 = X
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