jika f(x) = 2x+5 Dan g(x) = x-1/x+4, x ≠ -4, make (f°g)(x) =

Halo kak Nimas, kakak bantu jawab yaa :) Jawaban : (7x + 18)/(x + 4) ⚠️INGAT! Fungsi Komposisi Jika f(x) = ax dan g(x) = b, maka : 👉 f o g(x) = f(g(x) = f(b) = ab Sehingga : f(x) = 2x + 5 ; g(x) = (x - 1)/(x + 4) 👇 f o g(x) = f(g(x) = f[(x - 1)/(x + 4)] = 2[(x - 1)/(x + 4)] + 5 = (2x - 2)/(x + 4) + 5 = [(2x - 2)/(x + 4)] + [5(x + 4)/(x + 4)] = [(2x - 2) + 5(x + 4)]/(x + 4) = (2x - 2 + 5x + 20)/(x + 4) = (7x + 18)/(x + 4) Jadi, hasil dari f o g(x) adalah sama dengan (7x + 18)/(x + 4)