Question

How do you find the exact value of `tan^-1 (sqrt3/3)`?

Answer 1

`30^@`

Explanation:

`sqrt3/3 = 1/sqrt3`

`tan 30 = sin30/cos30 = (1/2)/(sqrt3/2) =1/sqrt 3`

`tan^(-1) (1/sqrt3) = 30^@`