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Discussion :: Sets, Relations and Functions

  1.  If f(x) = Log [(1 + x)/(1-x), then f (2x )/(1 + x²) is equal to

    2. A.

    {f(x)}²
    B.

    {f(x)}³
    C.

    2 f (x)
    D.

    3 f(x)

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    Answer : Option C

    Explanation :

    2 f (x)

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