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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$\operatorname{cosec}^{-1}(\sqrt{2})+\cos ^{-1}\left(\frac{-1}{2}\right)-\sec ^{-1}\left(\frac{2}{\sqrt{3}}\right)$ નું મૂલ્ય કેટલું થાય?

$\cot \left[\sum_{n=3}^{32} \cot ^{-1}\left(1+\sum_{k=1}^n 2 k\right)\right]=$

કિંમત શોધો: $\tan^{-1} \left( \frac{1}{\sqrt{x^2 - 1}} \right)$

$x$ માટે ઉકેલો: $\tan^{-1}\left(\frac{1-x}{1+x}\right) = \frac{1}{2} \tan^{-1} x$,જ્યાં $x > 0$.

જો $0 < x < \frac{1}{2}$ અને $\alpha = \sin^{-1} x + \cos^{-1} \left( \frac{x}{2} + \frac{\sqrt{3 - 3 x^2}}{2} \right)$ હોય,તો $\tan \alpha + \cot \alpha =$

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