$\sin(3 \sin^{-1}(1/5))$ का मान ज्ञात कीजिए।

  • A
    $74/125$
  • B
    $71/125$
  • C
    $3/5$
  • D
    $1/2$

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

$\tan ^{-1}(\cot x)+\cot ^{-1}(\tan x) =$ . . . . . .

यदि $y = \cos^2 [\cot^{-1} (\sqrt{\frac{1-x}{1+x}})]$ है, तो $\frac{dy}{dx} = \dots$

$\cos \left(\tan ^{-1}\left(\sin \left(\cot ^{-1} x\right)\right)\right)$ का मान है

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

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