Question

Tentukan invers f(x) =x²-12x+30

Answer 1

Verified answer

Kelas 10 Matematika
Bab Fungsi Komposisi

f(x) = x² - 12x + 30
y = x² - 12x + 30
y = (x - 6)² - 6
y + 6 = (x - 6)²
x - 6 = √(y + 6)
x = 6 +- √(y + 6)
f^-1 (x) = 6 +- √(x + 6)