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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2011

  • question_answer
        Let\[f(x)=[x],\]where\[[x]\]denotes the greatest integer contained in\[x\]. Which one of the following is correct?

    A) \[f(x)\]is one-to-one

    B) \[f(x)\]is onto

    C)  Domain of\[f(x)\]is set of renumbers and range of\[f(x)\]is set of integers\[x\]

    D)  Both domain and range of\[f(x)\]are set of real numbers

    Correct Answer: C

    Solution :

                    We know domain of the greatest integer function is the set of real number R and range is the set of integers.


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