MCQ
$\tan ^{-1}(-1)+\cos ^{-1}\left(\frac{-1}{\sqrt{2}}\right)=?$
  • $\frac{\pi}{2}$
  • B
    $\pi$
  • C
    $\frac{3 \pi}{2}$
  • D
    $\frac{2 \pi}{3}$

Answer

Correct option: A.
$\frac{\pi}{2}$
A

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