mencari invers g(x)= 2/x-1

jawab

g(x) = 2/(x -1)

y = 2/(x -1)
x -1 = 2/y
x = 2/y  + 1
x =  (2 +y) / y

g⁻¹ (y) = (2+y)/y
g⁻¹ (x) = (2+x) / x