Question

If $2\sin2\theta=\sqrt3$, where 0 ≤ 2θ ≤ 90°, then find the value of cos 3θ

• A. 0
• B. 1
• C. $\frac{\sqrt3}{2}$
• D. $\frac{1}{2}$

Answer 1

Answer: (A)

0

Answer 2

The correct option is (A) :0.