यदि $y = \cos^2 [\cot^{-1} (\sqrt{\frac{1-x}{1+x}})]$ है, तो $\frac{dy}{dx} = \dots$

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

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Similar Questions

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।

$\sec ^2(\tan ^{-1} 2)+\operatorname{cosec}^2(\cot ^{-1} 3) = $ . . . . . . .

$2 \cos ^{-1} x = \sin ^{-1} \left( 2 x \sqrt{1 - x^2} \right)$,$x$ के किन मानों के लिए मान्य है?

यदि $f(n) = \tan \left[\tan ^{-1} \frac{1}{1+2} + \tan ^{-1} \frac{1}{1+6} + \tan ^{-1} \frac{1}{1+12} + \ldots + \tan ^{-1} \frac{1}{1+n(n+1)}\right]$ है, तो $f(2021) =$

$\tan ^{-1} 2 + \tan ^{-1} 3 = $

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