જો ${\tan ^{ - 1}}x - {\tan ^{ - 1}}y = {\tan ^{ - 1}}A$ હોય,તો $A$ ની કિંમત શું થાય?

  • A
    $x - y$
  • B
    $x + y$
  • C
    $\frac{x - y}{1 + xy}$
  • D
    $\frac{x + y}{1 - xy}$

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Similar Questions

$\tan \left[ {\frac{\pi }{4} + \frac{1}{2}{{\cos }^{ - 1}}\frac{a}{b}} \right] + \tan \left[ {\frac{\pi }{4} - \frac{1}{2}{{\cos }^{ - 1}}\frac{a}{b}} \right] = $

જો $y = \operatorname{cosec}^{-1}\left[\frac{\sqrt{x}+1}{\sqrt{x}-1}\right] + \cos^{-1}\left[\frac{\sqrt{x}-1}{\sqrt{x}+1}\right]$ હોય,તો $\frac{dy}{dx} = $

$\tan ^{-1} \frac{1}{3}+\tan ^{-1} \frac{1}{5}+\tan ^{-1} \frac{1}{7}+\tan ^{-1} \frac{1}{8}$ ની કિંમત $ . . . . . . $ છે.

$2 \operatorname{Cos}^{-1} x + \operatorname{Sin}^{-1} x = \frac{11 \pi}{6}$ સમીકરણના ઉકેલોની સંખ્યા કેટલી છે?

$\sin \left(2 \sin ^{-1} \sqrt{\frac{63}{65}}\right)$ ની કિંમત શોધો.

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