Given the x power of function f (x) = (1 / 3), X belongs to [- 1,1], the minimum value of function g (x) = f ^ 2 (x) - 2AF (x) + 3 is h (a) (1) When a = 1, find the range of G (x) (2) The analytic expression of H (a)

Given the x power of function f (x) = (1 / 3), X belongs to [- 1,1], the minimum value of function g (x) = f ^ 2 (x) - 2AF (x) + 3 is h (a) (1) When a = 1, find the range of G (x) (2) The analytic expression of H (a)

The solution function f (x) = (1 / 3) ^ x, X belongs to [- 1,1], so 1 / 3=