railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If \(\frac{cosec \theta+cot \theta}{cosec \theta -cot \theta}=7\), then the value of \(\frac{4sin^2\theta + 5}{4sin^2\theta-1}\) is:
1
12
2
3
3
15
4
9