Let f ^ - 1 (x) be the inverse function of the function f (x) = (1 / 2) (a ^ x-a ^ - x) (a > 1), then the value range of X that f ^ - 1 (x) > 1 holds?

Let f ^ - 1 (x) be the inverse function of the function f (x) = (1 / 2) (a ^ x-a ^ - x) (a > 1), then the value range of X that f ^ - 1 (x) > 1 holds?

The range of inverse function is the domain of F (x)
So it is to find the range of F (x) when x > 1
a>1
So 0 (1 / 2) (A-1 / a)