MCQ
$\cos ^{-1} \frac{\sqrt{3}}{2}+2 \sin ^{-1} \frac{\sqrt{3}}{2}\ ......... $
- A$\frac{5 \pi}{6}$
- B$\frac{4 \pi}{3}$
- C$\frac{\pi}{4}$
- D$\frac{2 \pi}{3}$
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