यदि $x = 2 \cos^3 \theta$ और $y = 3 \sin^2 \theta$ है,तो $\frac{dy}{dx} = $

  • A
    $-\sec \theta$
  • B
    $\cos \theta$
  • C
    $-\operatorname{cosec} \theta$
  • D
    $\sin \theta$

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यदि $x=a\left\{\cos \theta+\log \tan \left(\frac{\theta}{2}\right)\right\}$ और $y=a \sin \theta$ है, तो $\frac{dy}{dx}$ का मान ज्ञात कीजिए।

यदि $x = \frac{3at}{1 + t^3}$ और $y = \frac{3at^2}{1 + t^3}$ है,तो $\frac{dy}{dx} = $

यदि $x=a(t+\sin t)$ और $y=a(1-\cos t)$ है,तो $\frac{d^2 y}{d x^2}$ ज्ञात कीजिए।

$x=\cos ^{-1}\left(\frac{1}{\sqrt{1+t^2}}\right), y=\sin ^{-1}\left(\frac{t}{\sqrt{1+t^2}}\right) \Rightarrow \frac{d y}{d x}$ का मान ज्ञात कीजिए।

यदि $x = a \cos \theta$ और $y = b \sin \theta$ है,तो $\left[\frac{d^2 y}{d x^2}\right]_{\theta = \frac{\pi}{4}}$ का मान ज्ञात कीजिए।

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