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.

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

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Similar Questions

જો $y = \tan^{-1} \sqrt{\frac{1 + \cos x}{1 - \cos x}}$ હોય,તો $\frac{dy}{dx}$ શું થાય?

જો $3 \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)-4 \cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)+2 \tan ^{-1}\left(\frac{2 x}{1-x^2}\right)=\frac{\pi}{3}$ 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.

$x > 0$ માટે, જો $\sin(\cos^{-1} x + \tan^{-1} x) - \cos(\sin^{-1} x + \tan^{-1} x) = \sin(\cot^{-1} 2)$ હોય, તો $x =$ શોધો.

$\lim _{x \rightarrow 0^{+}} \frac{x \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)}{\cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right) \tan ^{-1}\left(\frac{3 x-x^3}{1-3 x^2}\right)}$ ની કિંમત શોધો.

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