Jika f(x)=x dan g(x)=3x-4 maka nilai dari (g-1bundaran f-1)(8)

jawab
fungsi

f(x) = x
g(x) = 3x - 4

g⁻¹o f⁻¹ (8) =  a
(fog)⁻¹(8) = a
fog(a)= 8

f{g(a)} = 8
f(3a- 4)= 8

3a - 4= 8
3a  = 12
a= 4

g⁻¹ o f⁻¹ (8)= 4