dik f(x):x-16 dan g(x): x-4 tentukan (f×g)(x): (f/g)(x): (fog)(x): f(2): g(3): (fog)(2):
Matematika
tia883
Pertanyaan
dik f(x):x-16 dan g(x): x-4 tentukan
(f×g)(x):
(f/g)(x):
(fog)(x):
f(2):
g(3):
(fog)(2):
(f×g)(x):
(f/g)(x):
(fog)(x):
f(2):
g(3):
(fog)(2):
1 Jawaban
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1. Jawaban carlymarshanda
f(x)*g(x)
= (x-16)(x-4)
= x²-20x+64
f(x)/g(x)
= (x-16)/(x-4)
fog(x)=
f(g(x)) = f(x-4)
= x-4-16 = x-20
fog(2) = f(g(2))
= f(2-2)
= o-16 = -16
f(2) = 2-16 = -14
g(3) = 3-4 = -1