MCQ
$\frac{d}{d x}\left(\sec ^{-1} x\right)=$
  • A
    $\frac{1}{\sqrt{1-x^2}}$
  • $\frac{1}{x \sqrt{x^2-1}}$
  • C
    $\frac{1}{1+x^2}$
  • D
    $-\frac{1}{x \sqrt{x^2-1}}$

Answer

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

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