यदि $y = \tan^{-1} \left( \frac{1 - \cos 3x}{\sin 3x} \right)$ है,तो $\frac{dy}{dx} = \ldots$

  • A
    $-\frac{3}{2}$
  • B
    $-\frac{1}{2}$
  • C
    $\frac{3}{2}$
  • D
    $\frac{1}{2}$

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यदि $y = \tan^{-1} \left( \frac{3\cos x - 4\sin x}{4\cos x + 3\sin x} \right) + 2\tan^{-1} \left( \frac{x}{1+\sqrt{1-x^2}} \right)$ है, तो $x = \frac{\sqrt{3}}{2}$ पर $\frac{dy}{dx}$ का मान ज्ञात कीजिए:

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$\begin{aligned} & \text{यदि } y = \tan^{-1} \left\{ \frac{x}{1 + \sqrt{1 - x^2}} \right\} \\ & + \sin \left\{ 2 \tan^{-1} \sqrt{\frac{1 - x}{1 + x}} \right\} \text{ है, तो } \frac{dy}{dx} = \end{aligned}$

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