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Question 30

The figure shows a combination of two NOT gates and a NOR gate.

image

The combination is equivalent to a

Solution

$$\text{Outputs from NOT gates: } \bar{A} \text{ and } \bar{B}$$

$$\text{Output from final NOR gate: } Y = \overline{\bar{A} + \bar{B}}$$

$$Y = \overline{\bar{A}} \cdot \overline{\bar{B}}$$

$$Y = A \cdot B$$

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