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

tan A = 3/4, এবং tan B = 5/12, এবং A এবং B চতুর্ভুজে থাকলে, cos(A + B) এর মান নির্ণয় করুন।

1
1
2
33/65
3
16/65
4
15/48
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