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

যদি sin3A = cos(30° - A), যেখানে A হল একটি সূক্ষ্মকোণ, তাহলে 2cosecA + tan22A - cot2A এর মান কত?

1
17/2
2
5
3
4
4
7/4
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