railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

যদি tan 2A = cot(A - 18°) এবং 2A একটি সূক্ষ্মকোণ হয়, তাহলে 'A' এর মান নির্ণয় করুন।

1
24°
2
36°
3
28°
4
18°
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