Teaching HPSC Lecturer (Technical) Mock Test 2024 Digital Logic Number Representations and Computer Arithmetic Minimization of Boolean Expression
Let, x1 ⊕ x2 ⊕ x3 ⊕ x4 = 0 where x1, x2, x3, x4 are Boolean variables, and ⊕ is the XOR operator.
Which one of the following must always is TRUE?1
x1x2x3x4 = 0
2
x1x3 + x2 = 0
3
x̅1 ⊕ x̅3 = x̅2 ⊕ x̅4
4
x1 + x2 + x3 + x4 = 0
5
Question Not Attempted