Question

Write down output Y in terms of inputs A and B.

Answer 1

A	B	$\overline{A}$	$\overline{B}$	$\overline{A}+\overline{B}$	$\overline{\overline{A}+\overline{B}}$	B	$\overline{\overline{A}+\overline{B}}+\overline{B}$
0	0	1	1	1	0	0	0
1	0	0	1	1	0	0	0
0	1	1	0	1	0	1	1
1	1	0	0	0	1	1	1