Let f (x) = (a ^ x-1) / (a ^ x + 1), find its inverse function Function f (x) = (a ^ x-1) / (a ^ x + 1), find its inverse function, and find the value range of X which makes the inverse function greater than 0

Let f (x) = (a ^ x-1) / (a ^ x + 1), find its inverse function Function f (x) = (a ^ x-1) / (a ^ x + 1), find its inverse function, and find the value range of X which makes the inverse function greater than 0


y=（a^x-1）/（a^x+1）
=[(a^x+1)-2]/(a^x+1)
=1-2/(a^x+1)
∵ a^x>0,a^x+1>1
∴ -2

Elden Ring Premiere

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