Answer:
20
Step-by-step explanation:
We are given:
Tan²3Θ = 3
taking the square root of both the sides
Tan 3Θ = √3
3Θ = Arctan(√3)
the Arctan function takes a value as an input and outputs the angle at which you will have tanΘ = the input value
3Θ = 60
Θ = 20°
