फलन $x^{y} + y^{x} = 1$ के लिए $\frac{dy}{dx}$ ज्ञात कीजिए।

  • A
    $-\frac{y x^{y-1} + y^{x} \log y}{x^{y} \log x + x y^{x-1}}$
  • B
    $\frac{y x^{y-1} + y^{x} \log y}{x^{y} \log x + x y^{x-1}}$
  • C
    $-\frac{y x^{y-1} - y^{x} \log y}{x^{y} \log x - x y^{x-1}}$
  • D
    $\frac{y x^{y-1} - y^{x} \log y}{x^{y} \log x - x y^{x-1}}$

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