Diketahui:
f(x) = 3x+1
g(x) = 2x-5
Ditanyakan:
(fog)-¹(x)
Jawab:
(fog)(x) = f(g(x))
= 3(g(x))+1
= 3(2x-5)+1
= 6x-15+1
= 6x-14
y = 6x-14
y+14 = 6x
(y+14)/6 = x
(fog)-¹(x) = (x+14)/6
Mapel: Matematika
Kelas: 10
Materi: Komposisi Fungsi
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Diketahui:
f(x) = 3x+1
g(x) = 2x-5
Ditanyakan:
(fog)-¹(x)
Jawab:
(fog)(x) = f(g(x))
= 3(g(x))+1
= 3(2x-5)+1
= 6x-15+1
= 6x-14
y = 6x-14
y+14 = 6x
(y+14)/6 = x
(fog)-¹(x) = (x+14)/6
Mapel: Matematika
Kelas: 10
Materi: Komposisi Fungsi