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

  • A
    $0$
  • B
    $2$
  • C
    $-1$
  • D
    $4$

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Similar Questions

$x$ માટે ઉકેલો: $\tan^{-1}\left(\frac{1-x}{1+x}\right) = \frac{1}{2} \tan^{-1} x$,જ્યાં $x > 0$.

જો $y = \tan^{-1} \frac{x}{1+2x^2} + \tan^{-1} \frac{x}{1+6x^2} + \tan^{-1} \frac{x}{1+12x^2}$ હોય,તો $\left(\frac{dy}{dx}\right)_{x=\frac{1}{2}} = $

કિંમત શોધો: ${\tan ^{ - 1}}1 + {\tan ^{ - 1}}2 + {\tan ^{ - 1}}3$

જો $\tan^{-1}(1) + \tan^{-1}(3) + \tan^{-1}(5) + \tan^{-1}(1/4) = \pi + \tan^{-1}(\alpha/2)$ હોય, તો $\alpha$ ની કિંમત છે... ($/41$ માં)

$\sin \left[3 \sin ^{-1}(0.4)\right] = \ldots$

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