Ir tan x=0.5 tu en tan (pie+x)=?

Question

Sony understand how to do this.

Answer 1

y = tanx is periodic with period π.

 

So, if tanx = 0.5, then tan(x+π) = 0.5 as well.

Answer 2

tan x = 0.5

x = tan^-1 0.5

x = 26.565°

π + x =116.565°

tan 116.565° = -2