MCQ
`cos^-1 (cos (4pi)/3)` = ______.
  • $\frac{2\pi}{3}$
  • B
    $\frac{\pi}{3}$
  • C
    $\frac{4\pi}{3}$
  • D
    $\frac{5\pi}{6}$

Answer

Correct option: A.
$\frac{2\pi}{3}$
A

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