Question

How do you solve the inverse trig function `arctan (-sqrt5061)`?

Answer 1

`tan x = sqrt5114` -> find x ?

`tan x = -sqrt5061 = -71.14` -->

`x = 89.19` deg, and `x = (89.19 + 180) = 269.19`

The answer x = 89.19 is rejected because tan x is negative.