jika f(x) = x^2-4x+4, dengan x>2 maka f invers(1) adalah?

Fungsi
>> Invers

f(x) = y = x² - 4x + 4
y = (x - 2)²
(x - 2) = √y
x = 2 ± √y

x > 2

x = 2 + √y

f^-1 (x) = 2 + √x
f^-1 (1) = 2 + √1
f^-1 (1) = 3 ✔