If $\log _{10}\left(\frac{x^{3}-y^{3}}{x^{3}+y^{3}}\right)=2$,then $\frac{dx}{dy} = $

  • A
    $\left(-\frac{99}{101}\right) \frac{x^{2}}{y^{2}}$
  • B
    $\left(-\frac{101}{99}\right) \frac{x^{2}}{y^{2}}$
  • C
    $\left(-\frac{101}{99}\right) \frac{y^{2}}{x^{2}}$
  • D
    $\left(-\frac{99}{101}\right) \frac{y^{2}}{x^{2}}$

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Match the following List-$I$ with List-$II$ for $\frac{dy}{dx}$:
List-$I$List-$II$
$A. x^2 + y^2 + 3xy = 7$$I. \frac{x^2 + ay}{ax + y^2}$
$B. x^{2/3} + y^{2/3} = a^{2/3}$$II. \frac{-(2x + 3y)}{3x + 2y}$
$C. x^3 + y^3 = 3axy$$III. -(\frac{y}{x})^{1/3}$
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$V. \frac{-y(2x + y)}{x(x + 2y)}$

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