railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

The value of \({\sqrt\frac{1 + cos\ 2A}{1 - cos\ 2A}}\) = ? (Note: A is non zero)

1
cos A
2
cot A
3
tan A
4
sin A
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