MCQ
$\tan ^{-1}(-1)$ का मान है :
  • A
    $\frac{\pi}{4}$
  • B
    $\frac{-\pi}{2}$
  • C
    $\frac{5 \pi}{4}$
  • $\frac{-\pi}{4}$

Answer

Correct option: D.
$\frac{-\pi}{4}$
(D)

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