How many NAND gates are required to form an A | vedclass

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(B) To form an $AND$ gate using $NAND$ gates,we first pass the inputs $A$ and $B$ through a $NAND$ gate to get $\overline{A \cdot B}$.Then,we pass thi

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(B) To form an $AND$ gate using $NAND$ gates,we first pass the inputs $A$ and $B$ through a $NAND$ gate to get $\overline{A \cdot B}$.Then,we pass this output through another $NAND$ gate configured as a $NOT$ gate (by shorting its inputs together).Let the output of the first $NAND$ gate be $X = \overline{A \cdot B}$.The second $NAND$ gate acts as a $NOT$ gate,so its output $Y = \overline{X \cdot X} = \overline{X} = \overline{\overline{A \cdot B}} = A \cdot B$.Thus,two $NAND$ gates are required to form an $AND$ gate.

$A$	$B$	$Y$
$0$	$0$	$1$
$0$	$1$	$0$
$1$	$0$	$1$
$1$	$1$	$1$

How many $NAND$ gates are required to form an $AND$ gate?

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