समीकरण $x^{2}+xy+y^{2}=100$ के लिए $\frac{dy}{dx}$ ज्ञात कीजिए।

  • A
    $-\frac{2x+y}{x+2y}$
  • B
    $\frac{2x+y}{x+2y}$
  • C
    $-\frac{x+2y}{2x+y}$
  • D
    $\frac{x+2y}{2x+y}$

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