MCQ
$\sqrt{\frac{1+\cos A}{1-\cos A}}=$
- A$\operatorname{cosec} A-\cot A$
- ✓$\operatorname{cosec} A+\cot A$
- C$\operatorname{cosec} A \cdot \cot A$
- D$\sin A \cdot \tan A$
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