f(x) = x^2 - x - 2 dan g(x)= x + 2 maka (fog)(X) = .....
Matematika
Sofwa675
Pertanyaan
f(x) = x^2 - x - 2 dan g(x)= x + 2 maka (fog)(X) = .....
1 Jawaban
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1. Jawaban dewa251202
Bab Fungsi
(f o g)(x)
= f(g(x))
= f(x + 2)
= (x + 2)^2 - (x + 2) - 2
= (x^2 + 2x + 2x + 4) - x - 2 - 2
= x^2 + 4x + 4 - x - 4
= x^2 + 3x