જો $y = \log \left(\frac{1-x^{2}}{1+x^{2}}\right)$ હોય,તો $\frac{dy}{dx}$ ની કિંમત શોધો.

  • A
    $\frac{-4x}{1-x^{4}}$
  • B
    $\frac{4x^{3}}{1-x^{4}}$
  • C
    $\frac{1}{4-x^{4}}$
  • D
    $-\frac{4x^{3}}{1-x^{4}}$

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$\frac{d}{dx} \left[ \log \sqrt{\sin \sqrt{e^x}} \right] = $

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$\frac{d}{dx} \left[ \log \left\{ e^x \left( \frac{x - 2}{x + 2} \right)^{3/4} \right\} \right]$ ની કિંમત શોધો.

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