jika f(x) = 2+1/x dan (f o g) (x)=x-2 maka g(3)

(f o g)(x) = x - 2
=> f(g(x)) = x - 2
=> 2 + 1/g(x) = x - 2
=> 1/g(x) = x - 4
=> g(x) = 1/(x - 4)
=> g(3) = 1/(3 - 4) = 1/-1 = -1
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Maaf jika salah...