UGC NET CS 2005 Dec-Paper-2
January 16, 2024GATE 2014 [Set-2]
January 17, 2024Question 4072 – UGC NET CS 2005 Dec-Paper-2
Consider the following circuit :
to make it a Tautology the ? should be :
Correct Answer: A
Question 9 Explanation:
Method 1:
(X+Y) + (XY)’
= X+Y+X’+Y’
= (X+X’)+(Y+Y’)
= 1
Method 2:
(X+Y) + (XY)’
= X+Y+X’+Y’
= (X+X’)+(Y+Y’)
= 1
Method 2:
NAND gate
AND gate
OR gate
EX-OR gate