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11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-11

  • question_answer
    If \[\underset{x\to 0}{\mathop{\lim }}\,\frac{\log \,(3+x)-log\,(3-x)}{x}=k\]then the value of k is

    A)  \[1\]           

    B)  \[-\frac{1}{3}\]           

    C)  \[-\frac{2}{3}\]           

    D)  \[\frac{2}{3}\]

    Correct Answer: D

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