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The output Y for the inputs A and B of the given logic circuit is:
A
$A\cdot B$
B
$\overline{A}\cdot\overline{B}$
C
$A+B$
D
$\overline{A}+\overline{B}$
Detailed Solution
For the given circuit (NAND gates arranged to form the OR function), $Y=\overline{\overline{A}\cdot\overline{B}}=\overline{\overline{A}}+\overline{\overline{B}}=A+B$.