$\sin \left[2 \cos ^{-1} \frac{\sqrt{5}}{3}\right]$ का मान है

  • A
    $\frac{\sqrt{5}}{3}$
  • B
    $\frac{2 \sqrt{5}}{3}$
  • C
    $\frac{4 \sqrt{5}}{9}$
  • D
    $\frac{2 \sqrt{5}}{9}$

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$\tan \left( \frac{1}{2} \cos^{-1} \left( \frac{\sqrt{5}}{3} \right) \right)$ का मान ज्ञात कीजिए।

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मान ज्ञात कीजिए: $\cos^{-1}\sqrt{1-x} + \sin^{-1}\sqrt{1-x}$

व्यंजक का मान ज्ञात कीजिए: $sec^2(\tan^{-1} 3) - \tan^2(sec^{-1} 3) = $

$\sin \left( \frac{1}{2} \cos^{-1} \frac{4}{5} \right) = $

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