GATE Computer Science (CS) 2018 Shift 1 Solved Paper

Question : 13 of 65

Marks: +1, -0

Let

⊕

and

⊙

denote the Exclusive OR and Exclusive NOR operations, respectively. Which one of the following is NOT CORRECT?

Solution:

(P ⊕ \ov{P}) ⊕ Q=(P ⊙ \;\;

false

(P ⊕ \ov{P}) ⊕ Q=1 ⊕ Q=\ov{Q}

( {P} ⊙ \;\; ⊙ \;\; ⊕ \ov{ {Q}}= {Q}

∴ \;\; ( {P} ⊕ \ov{ {P}}) ⊕ {Q} ≠( {P} ⊙ \;\; ⊙)

So, options

{D}

is correct ans.

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