જો $0 < x < \frac{1}{\sqrt{2}}$ અને $\frac{\sin ^{-1} x}{\alpha}=\frac{\cos ^{-1} x}{\beta}$ હોય,તો $\sin \left(\frac{2 \pi \alpha}{\alpha+\beta}\right)$ ની કિંમત $......$ છે.

  • A
    $4 \sqrt{1-x^{2}}(1-2 x^{2})$
  • B
    $4 x \sqrt{1-x^{2}}(1-2 x^{2})$
  • C
    $2 x \sqrt{1-x^{2}}(1-4 x^{2})$
  • D
    $4 \sqrt{1-x^{2}}(1-4 x^{2})$

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Similar Questions

$\tan ^{-1}\left(\frac{1}{8}\right)+\tan ^{-1}\left(\frac{1}{2}\right)+\tan ^{-1}\left(\frac{1}{5}\right)$ નું મૂલ્ય શોધો.

જો $\sin^{-1}(x - 2) + \cos^{-1}(x) + \tan^{-1}(x + 2) + \cot^{-1}(x + 4) = \sec^{-1}(\sqrt{k}) - \frac{\pi}{2}$ હોય, તો $\cos(2 \csc^{-1}\sqrt{k - 1}) = \dots$

કિંમત શોધો: $\sin^{-1}(12/13) + \cos^{-1}(4/5) + \tan^{-1}(63/16) = $

$\frac{d}{dx}[\tan^{-1}(\cot x) + \cot^{-1}(\tan x)] = $

$\cos \left(2 \left(\tan ^{-1} \frac{1}{5}+\tan ^{-1} 5\right)\right) = $ . . . . . .

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