engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Digital Logic Number Representations and Computer Arithmetic Basic Gates
For following logic diagram which expression is true?
1
\(\overline {\left( {\overline {A.B} } \right) + \left( {A.B} \right)} \)
2
\(\overline {\left( {\bar A\;.\bar B} \right).\left( {A.B} \right)} \)
3
\(\overline {AB} .AB\)
4
\(\left( {A.B} \right)\left( {\overline {A.B} } \right)\)