यदि $y = \cos(x^{\circ})$ और $z = \cos x$ है,तो $\frac{dy}{dz}$ का मान ज्ञात कीजिए।

  • A
    $\frac{-\pi}{180} \sin(x^{\circ}) \operatorname{cosec} x$
  • B
    $\sin(x^{\circ}) \operatorname{cosec} x$
  • C
    $\frac{\pi}{180} \sin(x^{\circ}) \operatorname{cosec} x$
  • D
    $\frac{\pi}{180} \cos(x^{\circ}) \cos x$

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