Question

Помогите пожалуйста!!!
(3^-1+2^2)^-1

Answer 1

(3^-1 + 2^2)^-1 =
= (1/3 + 4)^-1 =
= (1/3 + 12/3)^-1 =
= (13/3)^-1 = 3/13