यदि $\int \frac{\log (1+x^4)}{x^3} d x=f(x) \log \left(\frac{1}{g(x)}\right)+\tan ^{-1}(h(x))+c$ है,तो $h(x)\left[f(x)+f\left(\frac{1}{x}\right)\right]=$

  • A
    $h(x) g(-x)$
  • B
    $\frac{g(x)}{2}$
  • C
    $g(x)+g(-x)$
  • D
    $g(x) h(x)$

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