JEE Main & Advanced Mathematics Functions Question Bank Differentiability

  • question_answer
    Which of the following is not true [Kurukshetra CEE 1996]

    A)            Every differentiable function is continuous

    B)            If derivative of a function is zero at all points, then the function is constant

    C)            If a function has maximum or minima at a point, then the function is differentiable at that point and its derivative is zero

    D)            If a function is constant, then its derivative is zero at all points

    Correct Answer: C

    Solution :

               It is fundamental concept.


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