Using the formulas above the given equation can be rewritten as,
Its roots are t1 = 1/√3 and t2 = -1/√3
Thus, the solution of the equation reduces to that of two elementary equations
tan x/2 = 1/√3, tan x/2 = - 1/√3
The solution is
tan x/2 = nπ ± π/6 ⇒ x = 2nx ± π/3