Question

Find the value of tan(-480)degree

Answer 1

Tan(480) =Tan(360+120) = Tan 120

Tan120 = Tan(90+30) = -Cot 30

Tan30 = 1/√3, so, Cot 30 = √3

So, Tan (480) = - cot 30 = -√3

Answer 2

Answer

The value of tan (-480) degree is

1.73205080757