Question

.............................. tg x = -2 ...............................

Answer 1

tg x=-2

x=arctg (-2)+nπ, n є Z

x=-arctg (2)+nπ, n є Z

Answer 2

It seems like you've provided an equation: tg x = -2. However, it's unclear what you would like to know or what you would like me to do with this equation. Could you please provide more context or specify what information or assistance you are seeking?