tan(3A) = √3 হলে, A = কত?

A 45°

B 30°

C 20°

D 15°

Solution

Correct Answer: Option C

প্রশ্ন: tan(3A) = √3 হলে, A = কত?

সমাধান: 
tan3A = √3
বা, tan3A = tan60°
বা, 3A = 60°
A = 20°

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