di bantu ya?? diketahui f(x)=3x²+4x+1 g(x)=3x-1 h(x)=4x+3 tentukan (gofoh) (2) ???

h(2) = 4×2+3 = 11
(foh)(2) = f[h(2)] = f(11) = 3×11² + 4×11 + 1 = 408
(gofoh)(2) = g[foh](2) = g(408) = 3×408 - 1 = 1.223

Mapel : Matematika
Kelas : X SMA
Bab : Fungsi Komposisi dan Fungsi Invers

Pembahasan :
Foh(x) = 3(4x + 3)² + 4(4x + 3) + 1
Foh(2) = 3(4.2 + 3)² + 4(4.2 + 3) + 1
Foh(2) = 3(11)² + 4(11) + 1
Foh(2) = 363 + 44 + 1
Foh(2) = 408

Gofoh(x) = G(f(h(2))
= G(408)
= 3(408) - 1
= 1223