MCQ
$\frac{d}{d x}\left(\sec ^{-1} x\right)=?,|x|>1$
  • $\frac{1}{|x| \sqrt{x^2-1}}$
  • B
    $\frac{-1}{|x| \sqrt{x^2-1}}$
  • C
    $\frac{1}{|x| \sqrt{x^2+1}}$
  • D
    $\frac{-1}{|x| \sqrt{x^2+1}}$

Answer

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

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