Find measures of positive and negative angles that are coterminal with the given angle->8π/5

A)14π/3;-2π/3

B)2π/3;-14π/3

C)11π/3;-2π/3

D)11π/3;-11π/3

Please help

just add or subtract multiples of 2π.

Since none of the choices involves π/5, I assume you meant 8π/3. If so, then
8π/3 + 2π = 14π/3
8π/3 - 2π = 2π/3
I suspect other typo(s)