1. Dik : fog (x) = -3x + 8 f (x)= 3x+2 Dit : g (x) = .......? 2. Dik : fog (x) = 3x - 1 g (x) = x - 2 Dit : f (x) =........? tlng di jwb yh per
Matematika
alvaro56
Pertanyaan
1. Dik : fog (x) = -3x + 8
f (x)= 3x+2
Dit : g (x) = .......?
2. Dik : fog (x) = 3x - 1
g (x) = x - 2
Dit : f (x) =........?
<komposisi>
tlng di jwb yh pertanyaannya
f (x)= 3x+2
Dit : g (x) = .......?
2. Dik : fog (x) = 3x - 1
g (x) = x - 2
Dit : f (x) =........?
<komposisi>
tlng di jwb yh pertanyaannya
1 Jawaban
-
1. Jawaban Anonyme
jawab
f(x)= 3x+2
fog(x) = 3x+8
f{ g(x)} = 3x+ 8
3. g(x) + 2 = 3x + 8
3. g(x)= 3x + 6
g(x)= 1/3 (3x+ 6)
g(x)= x + 2
2.
g(x)= x- 2
fog(x) = 3x -1
f { g(x)} = 3x -1
f(x-2) = 3x - 1
misal x -2 = y
x = y-2
f(y) = 3(y-2) -1
f(x) = 3(x -2) - 1
f(x)= 3x - 6 - 1
f(x) = 3x - 7