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Verified answer
Mapel MatematikaBab Komposisi Fungsi
fog(x)
= f(g(x))
= 4(x - 6) + 3
= 4x - 24 + 3
= 4x - 21
(fog)^-1(x)
y = 4x - 21
y + 21 = 4x
x = (y + 21)/4
ubah x menjadi invers fog dan y menjadi x
fog^-1(x) = (x + 21)/4