Dik: F(X) = 2X+1 Fog(X)= X per X+1 Dit: g min 1 (X)?

F(x) = 2x+1
(f o g)(x) = x/x + 1
f (g(x)) = x/x+1
2 g(x) + 1 = x/x +1
2 g(x) = x/x +1 – 1
2 g(x) = x/x
g(x) = x/x . 1/2
g(x) = x/2x
misal x/2x = y
            x = 2 x y
g invers  = 2 x . x = 2 x²

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