यदि $y = \cos^{-1}(\cos x)$ है,तो $x = \frac{5\pi}{4}$ पर $\frac{dy}{dx}$ ज्ञात कीजिए।

  • A
    $1$
  • B
    $-1$
  • C
    $0$
  • D
    $\frac{1}{\sqrt{2}}$

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यदि $(\tan ^{-1} x)^2+(\cot ^{-1} x)^2=\frac{5 \pi^2}{8}$ है,तो $x$ का मान ज्ञात कीजिए।

मान ज्ञात कीजिए: $\tan^{-1} \left( \frac{1 - x^2}{2x} \right) + \cos^{-1} \left( \frac{1 - x^2}{1 + x^2} \right)$

यदि $y = \sin^{-1}(x\sqrt{1 - x} + \sqrt{x}\sqrt{1 - x^2})$ है,तो $\frac{dy}{dx} = $

यदि $\sin ^{-1}\left(\frac{x}{13}\right)+\operatorname{cosec}^{-1}\left(\frac{13}{12}\right)=\frac{\pi}{2}$ है, तो $x$ का मान ज्ञात कीजिए।

$\cot ^{-1}\left(2 \cdot 1^2\right)+\cot ^{-1}\left(2 \cdot 2^2\right)+\cot ^{-1}\left(2 \cdot 3^2\right)+\ldots \ldots \ldots \infty =$

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