Matematika 21. Diketahui f / R -> R dengan f(x) = (x + 2)/(x - 3) dan g(x) = 3x + 1 Fungsi (f g)^ -1 (x)=​

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21. Diketahui f / R -> R dengan f(x) = (x + 2)/(x - 3) dan g(x) = 3x + 1 Fungsi (f g)^ -1 (x)=​

Jawaban:

f(x) = (x + 2)/(x - 3)

g(x) = 3x + 1

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

= (3x +3) / (3x -2)

(f o g)^-1 (x) = (2x +3)/ (3x-3)

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