यदि $y = \cot^{-1} \left( \frac{1 + x}{1 - x} \right)$ है,तो $\frac{dy}{dx} = $

  • A
    $\frac{1}{1 + x^2}$
  • B
    $-\frac{1}{1 + x^2}$
  • C
    $\frac{2}{1 + x^2}$
  • D
    $-\frac{2}{1 + x^2}$

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यदि $|x| < 1$ है,तो $y = \sin^{-1}\left(\frac{2x}{1+x^2}\right)$ के लिए $\frac{dy}{dx}$ ज्ञात कीजिए।

यदि $\sin ^{-1} x+\sin ^{-1} y+\sin ^{-1} z=\frac{3 \pi}{2}$ है,तो $x^{100}+y^{100}+z^{100}=$

$x$ के मानों का समुच्चय ज्ञात कीजिए जिसके लिए $\tan ^{-1}\left(\frac{x}{x-2}\right)-\tan ^{-1}\left(\frac{x}{2 x-1}\right)=\tan ^{-1}\left(\frac{2}{3}\right)$ है।

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यदि $\cot \frac{2x}{3} + \tan \frac{x}{3} = \csc \frac{kx}{3}$ है,तो $\tan^{-1}(\tan k)$ का मान क्या होगा?

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