જો $\tan ^{-1}\left[\frac{\sqrt{1+x^2}-\sqrt{1-x^2}}{\sqrt{1+x^2}+\sqrt{1-x^2}}\right]=\alpha$ હોય,તો $\sin 2 \alpha$ ની કિંમત શોધો.

  • A
    $x^3$
  • B
    $\sqrt{x}$
  • C
    $x$
  • D
    $x^2$

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Similar Questions

$\sin \left(\cos ^{-1}\left(-\frac{1}{7}\right)+\sin ^{-1}\left(-\frac{1}{7}\right)\right) = $ . . . . . . .

$\sin ^{-1}\left(\frac{3}{5}\right)-\sin ^{-1}\left(\frac{8}{17}\right)=$ . . . . . .

$\cos ^{ - 1}\frac{4}{5} + \tan ^{ - 1}\frac{3}{5} = $

જો $0 < x < 1$ હોય,તો $\sqrt{1+x^2} [\{x \cos (\cot ^{-1} x)+\sin (\cot ^{-1} x)\}^2-1]^{\frac{1}{2}}$ ની કિંમત શોધો.

ધારો કે પ્રતિ-ત્રિકોણમિતીય વિધેયો મુખ્ય કિંમતો લે છે. સમીકરણ $2 \sin ^{-1} x + 3 \cos ^{-1} x = \frac{2 \pi}{5}$ ના વાસ્તવિક ઉકેલોની સંખ્યા કેટલી છે?

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