f-1(x) =X²-8 ( f o g )-1 (x) = x² - 4x + 3 g(x) = ?

jawab
fungsi invers

f⁻¹ (x)= x² - 8

(fog)⁻¹(x)= x² -4x + 3
g⁻¹  {f⁻¹(x)} = x² - 4x + 3
g⁻¹(x²-8) = x² - 4x + 3
g(x² -4x + 3) = x² -8
g(x) = (2+ √(x+1))² - 8
g(x)=  4+x+1 + 4√(x+1) - 8
g(x) = x + 4√(x+1)  + 1