Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

যদি sin2x = 3 cos2x এবং 0° ≤ x ≤ 90°, তাহলে \(\frac{x}{2}\) এর মান কত ?

1
22.5°
2
45°
3
15°
4
30°
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