Question

What will be the values of input A and B for the Boolean expression `overline ((A +B) .(A*B)) =1?`

Answer 1

The truth table for the Boolean expression `overline ((A +B) .(A*B)) = is:`

A	B	(A+B)	(A,B)	(A+B).(A.B)	`overline ((A +B) .(A*B)) =1?`
1	1	1	1	1	0
0	0	0	0	0	1
1	0	1	0	0	1
0	1	1	0	0	1

The output of this Boolean expression is 1 only when both the inputs A and B are 1.

The values of A should, therefore, be 1.