यदि $\sec^{-1} x = \csc^{-1} y$ है,तो $\cos^{-1} \frac{1}{x} + \cos^{-1} \frac{1}{y} = $

  • A
    $\pi$
  • B
    $\frac{\pi}{4}$
  • C
    $-\frac{\pi}{2}$
  • D
    $\frac{\pi}{2}$

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Similar Questions

$\sin ^{-1}\left(\frac{3}{5}\right)-\sin ^{-1}\left(\frac{8}{17}\right)=$ . . . . . .

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

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

मान ज्ञात कीजिए: $\sin^{-1}(12/13) + \cos^{-1}(4/5) + \tan^{-1}(63/16) = $

यदि $y = \tan^{-1}\sqrt{\frac{1 + \cos x}{1 - \cos x}}$ है,तो $\frac{dy}{dx}$ का मान ज्ञात कीजिए।

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