જો $x=a \cos^{3} \theta$ અને $y=a \sin^{3} \theta$ હોય,તો $1+\left(\frac{dy}{dx}\right)^{2}$ ની કિંમત શું થાય?

  • A
    $\tan \theta$
  • B
    $\tan^{2} \theta$
  • C
    $\sec^{2} \theta$
  • D
    $1$

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જો $x=a(1-\cos \theta)$ અને $y=a(\theta+\sin \theta)$ હોય,તો $\frac{dy}{dx} =$ . . . . . .

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