f(x) = 2x + 3 g(x) = x² - 5 tentukan : (f o g)(x) = ? (g o f)(x) = ?
Matematika
alimron350
Pertanyaan
f(x) = 2x + 3
g(x) = x² - 5
tentukan :
(f o g)(x) = ?
(g o f)(x) = ?
g(x) = x² - 5
tentukan :
(f o g)(x) = ?
(g o f)(x) = ?
1 Jawaban
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1. Jawaban BSunShine
Materi : Fungsi
f(x) = 2x + 3
g(x) = x² - 5
(f o g)(x) = 2(x² - 5) + 3
(f o g)(x) = 2x² - 10 + 3
(f o g)(x) = 2² - 7
(g o f)(x) = (2x + 3)² - 5
(g o f)(x) = 4x² + 12x + 9 - 5
(g o f)(x) = 4x² + 12x + 4