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

$2 \tan ^{-1} \frac{1}{2} + \tan ^{-1} \frac{3}{8}$ નું મૂલ્ય શું છે?

કિંમત શોધો: $\sec^{-1} x + \operatorname{cosec}^{-1} x + \cos^{-1}(x^{-1}) + \sin^{-1}(x^{-1})$ (જ્યાં $|x| > 1, x \in R$)

સાબિત કરો કે $\tan ^{-1} \sqrt{x} = \frac{1}{2} \cos ^{-1} \left( \frac{1-x}{1+x} \right)$,જ્યાં $x \in [0, 1]$.

જો $\frac{a}{b} \tan x > -1$ હોય,તો $\tan ^{-1}\left[\frac{a \cos x-b \sin x}{b \cos x+a \sin x}\right]$ નું સાદું રૂપ આપો.

કિંમત શોધો: $\cot ^{ - 1}\left(\frac{xy + 1}{x - y}\right) + \cot ^{ - 1}\left(\frac{yz + 1}{y - z}\right) + \cot ^{ - 1}\left(\frac{zx + 1}{z - x}\right)$

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