मान लीजिए $\tan ^{-1}\left(\tan \frac{5 \pi}{4}\right) = \alpha$ और $\tan ^{-1}\left(-\tan \frac{2 \pi}{3}\right) = \beta$ है। तो:

  • A
    $\alpha > \beta$
  • B
    $4 \alpha - 3 \beta = 0$
  • C
    $\alpha + \beta = \frac{5 \pi}{12}$
  • D
    कोई नहीं

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$\cot ^{-1}\left(\frac{1}{\sqrt{x^2-1}}\right)=$ . . . . . . जहाँ,$x>1$.

यदि $\alpha \leq 2 \sin^{-1} x + \cos^{-1} x \leq \beta$ है,तो

प्रतिलोम त्रिकोणमितीय फलनों के केवल मुख्य मानों को ध्यान में रखते हुए,$\tan \left(\sin ^{-1}\left(\frac{3}{5}\right)-2 \cos ^{-1}\left(\frac{2}{\sqrt{5}}\right)\right)$ का मान है

$\tan \left[ 2\tan^{-1}\left( \frac{1}{5} \right) - \frac{\pi}{4} \right] = $

$\cosh \left(\sinh ^{-1}(\sqrt{8})+\cosh ^{-1} 5\right)=$

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