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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