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

sin(180 - θ)⋅sin(90 - θ) - [cot(90 - θ)/(1 + tan²θ)] এর মান কত?

1
cos²θ⋅sinθ
2
0
3
1
4
sin²θ⋅cosθ
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