JEE Main & Advanced Mathematics Functions Question Bank Functions

  • question_answer
    Which of the following function is invertible      [AMU 2001]

    A)                    \[f(x)={{2}^{x}}\]

    B)            \[f(x)={{x}^{3}}-x\]

    C)            \[f(x)={{x}^{2}}\]

    D)            None of these

    Correct Answer: A

    Solution :

               A function is invertible if it is one-one and onto.


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