railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

यदि sin x = cos 40°.sin 50° + sin 40°.cos 50° है, तो x का मान कितना होगा?

1
45 डिग्री
2
90 डिग्री
3
30 डिग्री
4
0 डिग्री
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