PYQ-2016-1-Mark-Logic-Gate

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Let, x1⊕x2⊕x3⊕x4 = 0 where x1, x2, x3, x4 are Boolean variables, and ⊕ is the XOR operator. Which one of the following must always be TRUE? [GATE||2016||SET2||1MARKS]


x1x2 x3x4 = 0

x1x3+x2 = 0

x1 '⊕x3 '= x2 '⊕ x4 '

x1 + x2 + x3 + x4 = 0


This question is part of this quiz :

GATE ||Digital Logic || Logic GATE || PYQ (2010- 2025),GATE|| Digital logic || Pyq (2010 to 2025),GATE || DIGITAL LOGIC || LOGIC GATE || PYQ (2010 TO 2025),GATE || DIGITAL ELECTRONICS / LOGIC ||PYQ (2010 TO2025)
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Digital Logic
GATE CS
Digital Electronics - Logic Gate
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