peguibraz peguibraz

30-03-2017
Mathematics

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Sabendo que f(g(x))=3x-7 e f(x)=1/3x2, então

Respuesta :

ghanami ghanami

30-03-2017

Hello :
find : g(x) if f(g(x))=3x-7 and f(x)=1/3x2

f(g(x)) = 1/3(g(x))2 = 3x-7
solve : 1/3(g(x))2 = 3x-7
(g(x))2 = 9x-21
g(x) = √(9x-21)

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