Question

Find θ, if 2 cos 3θ = √3

Answer 1

Step-by-step explanation:

2cos3a=√3

cos3a=√3/2=cos30°

3a=30°

a=theta=10°

Answer 2

2 cos 3θ =√3

⇒ cos 3θ = √3/2

⇒ cos 3θ = cos 30°

⇒ 3θ = 30°

⇒ θ = 30°/3

⇒ θ = 10°