$\tan \left[ {\frac{1}{2}{{\sin }^{ - 1}}\left( {\frac{{2a}}{{1 + {a^2}}}} \right) + \frac{1}{2}{{\cos }^{ - 1}}\left( {\frac{{1 - {a^2}}}{{1 + {a^2}}}} \right)} \right] = $

  • A
    $\frac{{2a}}{{1 + {a^2}}}$
  • B
    $\frac{{1 - {a^2}}}{{1 + {a^2}}}$
  • C
    $\frac{{2a}}{{1 - {a^2}}}$
  • D
    આમાંથી કોઈ નહીં

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Similar Questions

જો $\tan ^{-1}x + \tan ^{-1}y + \tan ^{-1}z = \frac{\pi }{2}$ હોય,તો

જો $y = \tan^{-1} \left( \frac{4x}{1 + 5x^2} \right) + \tan^{-1} \left( \frac{2 + 3x}{3 - 2x} \right)$ હોય,તો $\frac{dy}{dx} = $

જો $\tan^{-1} \frac{1}{1+1(2)} + \tan^{-1} \frac{1}{1+2(3)} + \tan^{-1} \frac{1}{1+3(4)} + \dots + \tan^{-1} \frac{1}{1+n(n+1)} = \tan^{-1} \theta$ હોય,તો $\theta$ =

જો $\tan ^{-1}\left(\frac{x+1}{x-1}\right)+\tan ^{-1}\left(\frac{x-1}{x}\right)=\tan ^{-1}(-7)$ હોય,તો $x$ ની કિંમત શોધો.

જો $-1 < x < 1$ અને $x \neq 0$ માટે $\tan ^{-1}\left(\frac{2 x}{1-x^2}\right)+\cot ^{-1}\left(\frac{1-x^2}{2 x}\right)=\frac{\pi}{3}$ ના તમામ ઉકેલોનો સરવાળો $\alpha-\frac{4}{\sqrt{3}}$ હોય,તો $\alpha$ ની કિંમત $..........$ થાય.

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