railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
\(\rm \frac{\sin x-\cos x}{\sin x+\cos x}=\frac{2}{5}\) হলে \(\rm \frac{1+\cot^2x}{1-\cot^2x}\)-এর মান কত?
1
2.25
2
1.45
3
3.75
4
5.25