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GATE CSE 2002 | Question: 1.12

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Two quads are getting formed $x\bar z$  and  $z\bar x$

Ans is Option B

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m1,m3,m9,m11 form one quad xz'

m4,m6,m12,m14 form one quad x'z

So f=x'z+z'x

Ans is b
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