# What will be the values of input A and B for the Boolean expression - Physics

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

#### Solution

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.

Concept: Digital Electronics and Logic Gates
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