Multiple choice

Find the output Y (A, B, C) in the figure, A, B and C are Boolean variables.

  1. $\overline {AB}$+ $\bar A$BC
  2. A + BC

  3. $\bar A$$\bar B$ + BC
  4. (AB + A$\bar B$) C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Explanation Y = $\bar A$$\bar B$I0 + $\bar A$BI1 + A$\bar B$I2 + ABI3= $\bar A$$\bar B$×1 + $\bar A$BC + A$\bar B$×0 + ABC= $\bar A$$\bar B$ + $\bar A$BC + ABC= $\bar A$$\bar B$ + BC