Question

In a Boolean Algebra B, for all x, y in $B,(x \land y)^{'} =$

• A. $x^{'} \land y^{'}$
• B. $x^{'} \vee y^{'}$
• C. 1
• D. None of these

Answer 1

Answer: (B)

$x^{'} \vee y^{'}$

Answer 2

It is obvious.