engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

যদি sin(3A) = cos(70° - A), তাহলে নির্ণয় করে বলুন A এর মান কত?

1

8°

2

5°

3

7°

4

10°

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