જો $x = \sec \theta - \cos \theta$ અને $y = \sec^n \theta - \cos^n \theta$ હોય,તો:

  • A
    $(x^2 + 4) \left( \frac{dy}{dx} \right)^2 = n^2(y^2 + 4)$
  • B
    $(x^2 + 4) \left( \frac{dy}{dx} \right)^2 = x^2(y^2 + 4)$
  • C
    $(x^2 + 4) \left( \frac{dy}{dx} \right)^2 = (y^2 + 4)$
  • D
    આમાંથી કોઈ નહીં

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$a > 0, t \in \left( 0, \frac{\pi}{2} \right)$ માટે,ધારો કે $x = \sqrt{a^{\sin^{-1} t}}$ અને $y = \sqrt{a^{\cos^{-1} t}}$. તો,$1 + \left( \frac{dy}{dx} \right)^2$ ની કિંમત શોધો.

જો $x=2 \cos t-\cos 2 t$ અને $y=2 \sin t-\sin 2 t$ હોય,તો $\left.\frac{d^{2} y}{d x^{2}}\right|_{t=\pi / 2}$ ની કિંમત શોધો. ($/2$ માં)

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જો $x=3 \sqrt{2} \cos ^3 \theta$ અને $y=4 \tan ^2 \theta$ હોય, તો $\left(\frac{d y}{d x}\right)_{\theta=\frac{\pi}{4}} = $

ધન અચળાંક $a$ માટે $\frac{dy}{dx}$ શોધો,જ્યાં $y = a^{t+\frac{1}{t}}$ અને $x = \left(t+\frac{1}{t}\right)^{a}$ છે.

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