Jikaf(x)=x2+2x-3dang(x)=2x+1,nilai(fog)(-2)=
Jawaban Terkonfirmasi
Kelas 10 Matematika
Bab Fungsi Komposisi
g(x) = 2x + 1
g(-2) = 2 . (-2) + 1
g(-2) = -3
f(x) = x² + 2x – 3
f(-3) = (-3)² + 2 . (-3) – 3
f(-3) = 9 – 6 – 3
f(-3) = 0
Maka, (fog) (-2) = 0