Manipal Engineering Manipal Engineering Solved Paper-2012

  • question_answer
    Domain of the function\[\log |{{x}^{2}}-9|\]is

    A) \[R\]                                     

    B) \[R-[-3,\,\,3]\]

    C) \[R-\{-3,\,\,3\}\]              

    D)         None of these

    Correct Answer: C

    Solution :

    For\[x=-3,\,\,3;|{{x}^{2}}-9|\,\,=0\] Therefore,\[|{{x}^{2}}-9|\]does not exist at                 \[x=-3,\,\,3\] Hence, domain of function is\[R-\{-3,\,\,3\}\].


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