CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2002

  • question_answer
    Which one of the following is a bijective function on the set of real numbers?

    A)  \[2x-5\]                              

    B)                         \[|x|\]

    C)                         \[{{x}^{2}}\]                                     

    D)                         \[{{x}^{2}}+1\]

    E)                         \[{{x}^{4}}-{{x}^{2}}+1\]

    Correct Answer: A

    Solution :

    \[\because \]In the given options only\[2x-5\]is one-one and onto, therefore it is bijective.


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