Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

ఒకవేళ \(\rm \sin \theta=\frac{5}{13}\) , అప్పుడు \(\rm \frac{\cos^2 \theta-\sin^2 \theta}{2\cos \theta.\sin \theta}\) విలువ ఎంత?

1
115/126
2
113/120
3
117/136
4
119/120

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