Jawabanmu

2014-04-02T22:01:44+07:00
F(x) = 1 + (1 / x³)
misal f(x) = y, maka:
y = 1 + (1 / x³)
1 / x³ = y - 1
x³ = 1 / (y - 1)
x = ∛(1 / (y - 1))
f-1 (y) = ∛(1 / (y - 1))
f-1 (x) = ∛(1 / (x - 1))