Question

How do you find the exact values of `arctan sqrt3`?

Answer 1

`pi/6 and (7pi)/6`

Explanation:

Find by Trig Table of Special Arcs:
`tan x = sqrt3` --> arc `x = pi/6` , or `x = 30^@`
Trig unit circle gives another arc that has the same tan value:
`x = pi/6 + pi = (7pi)/6`