Jika fungsi f(x) =x+4/x-6, x tidsj sama dengan 6 dan g(x) =2x-1,maka g bundaran f invers x adalah
Jawab:
Penjelasan dengan langkah-langkah:
f (x) = (x + 4)/(x – 6)
g (x) = 2x – 1
(gof) (x) = g ((x + 4)/(x – 6))
(gof) (x) = 2 . ((x + 4)/(x – 6)) – 1
(gof) (x) = (2x + 8 – 1 . (x – 6)) / (x – 6)
(gof) (x) = (2x + 8 – x + 6)/(x – 6)
(gof) (x) = (x + 14)/(x – 6)
h (x) = (ax + b)/(cx + d)
h⁻¹ (x) = (-dx + b)/(cx – a)
(gof) (x) = (x + 14)/(x – 6)
(gof)⁻¹ (x) = (6x + 14)/(x – 1)
Detail Jawaban
Kelas 10
Mapel 2 – Matematika
Bab 6 – Fungsi Rasional
Kode Kategorisasi : 10.2.6