railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If \(\rm \frac{\sin x-\cos x}{\sin x+\cos x}=\frac{2}{5}\), then the value of \(\rm \frac{1+\cot^2x}{1-\cot^2x}\) is:
1
2.25
2
1.45
3
3.75
4
5.25