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

જો $\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1$ હોય,તો $x$ ની કિંમત શોધો.

જો $\sec ^{-1} \frac{x}{a}-\sec ^{-1} \frac{x}{b}=\sec ^{-1} b-\sec ^{-1} a$ હોય,તો $x$ ની કિંમત શોધો.

$|x| < \frac{1}{\sqrt{2}}, x \neq 0$ માટે $\tan ^{-1}\left(\frac{\sqrt{1+x^2}+\sqrt{1-x^2}}{\sqrt{1+x^2}-\sqrt{1-x^2}}\right)$ ની કિંમત શોધો.

જો $\sin^{-1} x + \cos^{-1} y = \frac{2\pi}{5}$ હોય,તો $\cos^{-1} x + \sin^{-1} y$ ની કિંમત શું થાય?

$|x| \geq 1$ માટે $\cos \left(\sec ^{-1} x+\csc ^{-1} x\right)$ ની કિંમત શોધો.

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