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

  • A
    $2$
  • B
    $2 - \pi$
  • C
    $\pi - 2$
  • D
    $2\pi - 2$

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$\tan \left[ {\frac{1}{2}{{\sin }^{ - 1}}\left( {\frac{{2a}}{{1 + {a^2}}}} \right) + \frac{1}{2}{{\cos }^{ - 1}}\left( {\frac{{1 - {a^2}}}{{1 + {a^2}}}} \right)} \right] = $

$\tan^{-1}\left(\frac{x}{y}\right) - \tan^{-1}\left(\frac{x-y}{x+y}\right)$ का सरलीकृत रूप किसके बराबर है?

$|x| < \frac{1}{\sqrt{2}}, x \neq 0$ के लिए $\tan ^{-1}\left(\frac{\sqrt{1+x^2}+\sqrt{1-x^2}}{\sqrt{1+x^2}-\sqrt{1-x^2}}\right)$ का मान ज्ञात कीजिए।

$x$ का वह मान जो $\sin \left(\cot ^{-1} x\right)=\cos \left(\tan ^{-1}(1+x)\right)$ को संतुष्ट करता है, है

यदि $k \le \sin^{-1}x + \cos^{-1}x + \tan^{-1}x \le K$ है,तो

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