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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 45

  • question_answer
    Dual of \[\left( x'\wedge y' \right)'=x\vee y\] is-

    A) \[\left( x'\wedge y' \right)=x\wedge y\]  

    B)        \[\left( x'\vee y' \right)'=x\wedge y\]

    C) \[\left( x'\vee y' \right)'=xy\]     

    D)        None of these

    Correct Answer: B

    Solution :

    [b] Obviously, In dual \['\wedge '\] is changed to \['\vee '\] and \['\vee '\] is changed to \['\wedge '\] So, dual of \[\left( x'\wedge y' \right)'=x\vee y\] is \[\left( x'\vee y' \right)'=x\wedge y\]


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