Question

If A = 1, B = 0 then the value of $\bar{A}$ + B in terms of Boolean algebra is

• A. A
• B. B
• C. B + A
• D. A.B.

Answer 1

Answer: (D)

$[\bar{1}+\bar{1}].1=[0+0].1=0.1=0$
$[\bar{1}+0].1=[0+0].1=0.1=0$
$[\bar{1}+0].\bar{1}=[0+0].1=0.0=0$
[1 + 1].1 = 1.1
Hence (D) is NOT true