Which logic gate is represented by the following combination logic gates?

The given circuit consists of two NOT gates followed by a NOR gate.

Let the inputs be $A$ and $B$.

The output of the first NOT gate is $\overline{A}$.

The output of the second NOT gate is $\overline{B}$.

These two signals are fed into a NOR gate. The output $Y$ of a NOR gate with inputs $X_1$ and $X_2$ is $\overline{X_1 + X_2}$.

Substituting $X_1 = \overline{A}$ and $X_2 = \overline{B}$, we get $Y = \overline{\overline{A} + \overline{B}}$.

Using De Morgan's Law, $\overline{\overline{A} + \overline{B}} = \overline{\overline{A}} \cdot \overline{\overline{B}} = A \cdot B$.

The expression $Y = A \cdot B$ represents the AND logic gate.

Answer: AND