SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
যদি \(\rm \frac{1}{cosec^2\theta-cot^2\theta} + \frac{1}{sec^2 - tan^2\theta}\) = 2sinθ হয়, তাহলে θ এর একটি মান হল:
1
0°
2
30°
3
45°
4
90°