मान ज्ञात कीजिए: $\tan^{-1}\left(\frac{1}{4}\right) + \tan^{-1}\left(\frac{2}{9}\right) = $

  • A
    $\frac{1}{2}\cos^{-1}\left(\frac{3}{5}\right)$
  • B
    $\frac{1}{2}\sin^{-1}\left(\frac{3}{5}\right)$
  • C
    $\frac{1}{2}\tan^{-1}\left(\frac{3}{5}\right)$
  • D
    इनमें से कोई नहीं

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Similar Questions

यदि $\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1$ है,तो $x$ का मान ज्ञात कीजिए।

यदि $\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1$ है,तो $x$ का मान है

$\cos \left[ 2\cos^{-1}\frac{1}{5} + \sin^{-1}\frac{1}{5} \right] = $

यदि $\sin^{-1} \frac{3}{5} + \cos^{-1} \frac{12}{13} = \sin^{-1} C$ है,तो $C =$

यदि $y = \sec^{-1}\left( \frac{\sqrt{x} + 1}{\sqrt{x} - 1} \right) + \sin^{-1}\left( \frac{\sqrt{x} - 1}{\sqrt{x} + 1} \right)$ है,तो $\frac{dy}{dx} = $

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