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GATE | GATE CS 2012 | Question 65

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The truth table truthtable represents the Boolean function (A) X (B) X+Y (C) X xor Y (D) Y

Answer: (A)

Explanation: The value of f(X, Y) is same as X for all input pairs. Also sum of product form of expression we get,
= XY’+XY
= X(Y’+Y)
= X *1
= X 
We see from truth table –
Column x = f(x,y) 
So , 
f(x,y)=x 
Option (A) is correct.

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Last Updated : 20 Sep, 2021
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