यदि $x^2 y^2 = \sin^{-1} x + \cos^{-1} x$ है,तो $x = 1$ और $y = 2$ पर $\frac{dy}{dx}$ का मान ज्ञात कीजिए।

  • A
    $\frac{1}{2}$
  • B
    $2$
  • C
    $-\frac{1}{2}$
  • D
    $-2$

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