f(x)=3x+1 dan g(x)=x^2+1 maka (fog)(-2)

Fungsi Komposisi.
Kelompok wajib kelas X kurikulum 2013 revisi 2016.

(f o g)(x) = f(g(x))
= f(x² + 1)
= 3(x² + 1) + 1
= 3x² + 4
(f o g)(-2) = 3(-2)² + 4 = 16

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

=3(x^2+1)+1
=3x^2+3+1
=3x^2+4
(fog)(-2)=3(-2)^2+4
=12+4
=16