કિંમત શોધો: ${\tan ^{ - 1}}\left[ {\frac{{\cos x}}{{1 + \sin x}}} \right]$

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

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$2 \cot ^{-1} \frac{1}{2} - \cot ^{-1} \frac{4}{3}$ ની કિંમત શોધો.

સાબિત કરો કે $\sin ^{-1} \frac{3}{5}-\sin ^{-1} \frac{8}{17}=\cos ^{-1} \frac{84}{85}$

$\tan \left[2 \tan ^{-1} \frac{1}{5}-\frac{\pi}{4}\right]$ ની કિંમત શોધો.

જો $y = \cot^{-1} \left[ \frac{\sqrt{1 + \sin x} + \sqrt{1 - \sin x}}{\sqrt{1 + \sin x} - \sqrt{1 - \sin x}} \right]$ હોય,તો $\frac{dy}{dx} = $

$4 \tan ^{-1} \frac{1}{5}-\tan ^{-1} \frac{1}{70}+\tan ^{-1} \frac{1}{99}=$

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