railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

If 3 sin2 θ + 7 cos2 θ = 6 and 0 < θ ≤ 90°, then the value of θ is :

1
30°
2
90°
3
60°
4
45°
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