G(x) = 3x +2 dan f(x) = 2x – 5. Tentukanlah : a. (f o g)-1

Penjelasan dengan langkah-langkah:

f(x) = 2x – 5

g(x) = 3x + 2

(fog)(x) = 2(3x + 2) – 5

(fog)(x) = 6x + 4 – 5

(fog)(x) = 6x – 1

y = 6x – 1

6x = y + 1

x = 1/6(y + 1)

(fog)⁻¹(x) = 1/6(x + 1)