f(x) = x² - x + 3 maka (fog)(x) = f (g(x)) = f(3x-2) = (3x-2)² - (3x - 2) + 3 = 9x² - 12x + 4 - 3x + 2 + 3 = 9x² - 15x + 9 Semoga membantu... :)
Jawab: Penjelasan dengan langkah-langkah: fungsi f(x) = x² g(x)= 2x + 1 (fog)⁻¹ (a) = 1 (fog)(1) = a f{ g(1)} = a f {(2(1) +1 } = a f(3) = a 3² = a a= 9 |