788 views

The truth table

X Y (X,Y)
0 0 0
0 1 0
1 0 1
1 1 1

${\begin{array}{|c|c|c|}\hline\\ \textbf{X}& \textbf{Y}& \textbf{(X,Y)} \\\hline 0& 0& 0 \\ \hline 0& 1&0\\ \hline 1& 0& 1 \\\hline 1& 1& 1 \\\hline \end{array}}$

represents the Boolean function

1. $X$
2. $X + Y$
3. $X \oplus Y$
4. $Y$
edited | 788 views

Whenever $X$ is true $(X,Y)$ is true and whenever $X$ is false $(X,Y)$ is false, so the answer is (A) $X$.
selected ago
f(x,y)= xy' + xy
= x(y'+y)
= x

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