Jawaban:
(fog) (x) = 3x+1
f(g(x)) = 3x +1
f(x+1) = 3x +1
Misalkan x+1 = p
x= p-1
Maka, f(p) = 3(p-1) +1
f(p) = 3p-3+1
f(p) = 3p-2
f(x) = 3x-2
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Jawaban:
(fog) (x) = 3x+1
f(g(x)) = 3x +1
f(x+1) = 3x +1
Misalkan x+1 = p
x= p-1
Maka, f(p) = 3(p-1) +1
f(p) = 3p-3+1
f(p) = 3p-2
f(x) = 3x-2