dik fx= 2x²+3 dan gx=x+1, maka nilai gof(-1) adlh

f (x) = 2x^2 +3 dan g (x) = x + 1
gof (-1) = g { f (-1) }
= g { 2.(-)^2 + 3 }
= g ( 2+3)
= g (5)
= 5 +1
= 6

Kelas 10 Matematika
Bab Fungsi Komposisi

(gof) (x) = g(x + 1)
(gof) (x) = (2x² + 3) + 1
(gof) (-1) = 2 . (-1)² + 3 + 1
(gof) (-1) = 6