1. Sendo f(x) = 2x – 3 e g(x) = 4 – x², determine: a) f(g(x)) b) g(f(x)).... Pergunta de ideia deNath11

April 2020 1 73 Report

1.
Sendo f(x) = 2x – 3 e g(x) = 4 – x², determine: a) f(g(x)) b) g(f(x)).

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$\boxed{f(g(x))=2(4-x^2)-3=8-2x^2-3=-2x^2+5}\\
\\
\\
g(f(x))=4-(2x-3)^2=4-(4x^2-12x+9)=4-4x^2+12x-9=\\
\\
-4x^2+12x-5$

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