Jika f(x)= x-5 dan (fog)(x)=x^2-6 maka nilai g(4)=

Penjelasan:

fog(x) = f(g(x))

x² – 6 = g(x) – 5

x² – 6 + 5 = g(x)

x² – 1 = g(x)

g(x) = x² – 1

Maka,

g(4) = x² – 1

g(4) = (4)² – 1

g(4) = 15

Jadi, hasil fungsi g(4) adalah 15