यदि $\cos ^{-1} 2x + \cos ^{-1} 3x = \frac{\pi}{3}$ है,तो $x =$

  • A
    $\frac{\sqrt{3}}{2\sqrt{7}}$
  • B
    $\frac{\sqrt{3}}{\sqrt{7}}$
  • C
    $\frac{\sqrt{2}}{\sqrt{5}}$
  • D
    $\frac{\sqrt{3}}{2\sqrt{5}}$

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$x$ के मानों का समुच्चय ज्ञात कीजिए जिसके लिए $\tan ^{-1}\left(\frac{x}{x-2}\right)-\tan ^{-1}\left(\frac{x}{2 x-1}\right)=\tan ^{-1}\left(\frac{2}{3}\right)$ है।

यदि $(\cos ^{-1} x)^2-(\sin ^{-1} x)^2 > 0$ है,तो

$\tan \left(2 \tan ^{-1}\left(\frac{3}{5}\right)+\sin ^{-1}\left(\frac{5}{13}\right)\right)$ का मान ज्ञात कीजिए:

मान ज्ञात कीजिए: $\tan^{-1} \left( \frac{1}{\sqrt{x^2 - 1}} \right)$

$2 \tan ^{-1} \frac{1}{2} + \tan ^{-1} \frac{3}{8}$ का मान क्या है?

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