plis buat besok di kumpulinnnnnn.... ka

jawab

f(x)=  (x +3)/(x -3)
g(x)= x - 1

(fog)⁻¹ (x) = ...

(fog)(x) =  f{ g(x)}
= f {x -1}
= (x -1 + 3) / (x -1 - 3)
= (x + 2)/(x - 4)

fog(x) = (x + 2)/(x - 4)
y = ( x + 2)/ (x - 4)
y(x - 4) = x + 2
xy - 4y = x  + 2
xy - x = 4y + 2
x(y -1) = 4y  + 2
x = (4y + 2)/(y + 1)

(fog)⁻¹ (y) = (4y + 2)/(y + 1)
(fog)⁻¹ (x) = (4x + 2) / (x + 1)