Respostas

2013-07-15T11:44:40-03:00
A)g(1)=2.1+1
g(1)=3
Substituindo
f(3)=3²-2.3+1
f(3)=9-6+1
f(3)=4

b)f(2)=2²-2.2+1
f(2)=4-4+1
f(2)=1
Substituindo
g(1)=2.1+1
g(1)=3

c)f(1)=1²-2.1+1
f(1)=1-2+1
f(1)=0
Substituindo
f(0)=0²-2.0+1
f(0)=0-0+1
f(0)=1
6 5 6