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Verified answer
Fungsi Komposisif(x) = √(x² + 1)
(fog)(x) = 1/(x - 2) √(x² - 4x + 5)
√((g(x))² + 1) = 1/(x - 2) √(x² - 4x + 5)
Kuadratkan kedua ruas
(g(x))² + 1 = 1/(x - 2)² . (x² - 4x + 5)
(g(x))² = (x² - 4x + 5 - (x - 2)²) / (x - 2)²
(g(x))² = (x² - 4x + 5 - x² + 4x - 4) / (x - 2)²
(g(x))² = 1/(x - 2)²
g(x) = 1/(x - 2)