Respostas

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2014-01-06T14:37:52-02:00
Fog = f (g(x)) 
f = 3x - 1  e g = 2x - 2
fog = 3.(2x - 2) - 1 
fog = 6x - 6 -1 
fog = 6x - 7

Gof = g (f(x))
Gof = 2.(3x -1) - 2 
Gof = 6x - 2 -2 
Gof = 6x - 4