If $f(x) = \frac{1}{1 + \frac{1}{x}}$ and $g(x) = \frac{1}{1 + \frac{1}{f(x)}}$, then $g^{\prime}(2)$ is equal to

  • A
    $\frac{1}{5}$
  • B
    $\frac{1}{25}$
  • C
    $5$
  • D
    $\frac{1}{16}$

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Difficult
View Solution

Assertion: For $x < 0$, $\frac{d^2}{d x^2}(\log |x|) = \frac{1}{|x|^2}$.
Reason: For $x < 0$, $|x| = -x$.

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