MCQ
यदि $\cos ^{-1} \frac{1}{x}=\theta$, तब $\tan \theta=$
  • A
    $\frac{1}{\sqrt{x^2-1}}$
  • $\sqrt{x^2-1}$
  • C
    $\sqrt{1-x^2}$
  • D
    $\sqrt{x^2+1}$

Answer

Correct option: B.
$\sqrt{x^2-1}$
B

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