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  4. If A = 1, B = 0 then the value of barA + B in terms of Boolean algebra is

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

Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

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