1. Jika g (x) = akar x-2 dan fog (x)= 6 -x, maka nilai dari f(3) adalah.... 2. Diketahui f(x) = x^3 dan g(x) = 2x-8. Nilai (gof)^-1 (8) adalah Tolong dijawab d

2. gofx = 2(x^3) - 8
gofx = 2x^3 - 8
gofx^-1 = (x^3 + 8)/2
gofx^-1(8) = (8^3 + 8)/2
= 520/2
= 260
1. fogx = 6 - x
f(akar x - 2)
= -(akar x - 2)(akar x - 2) + 8
kita misal akar x - 2 = a
fa = -a^2 + 8
fx = -x^2 + 8
f(3) = -(3)^2 + 8
= -9 + 8
= -1