SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

যদি 2 sinθ + 2 sin2θ = 2 হয়, তাহলে 2 cos4θ + 2 cos2θ এর মান হল:

1
4
2
2
3
1
4
0
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