MCQ
$\cot 12^{\circ} \cdot \cot 38^{\circ} \cdot \cot 52^{\circ} \cdot \cot 60^{\circ} \cdot \cot 78^{\circ}$ =
- A1
- B$\sqrt{3}$
- ✓$\frac{1}{\sqrt{3}}$
- D3
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