Respostas

A melhor resposta!
2014-03-19T18:02:48-03:00
A)f(2)=2.2-3
f(2)=4-3
f(2)=1


b)g(3)=-3+5
g(3)=2

h(3)=3(5)+1
h(3)=15+1
h(3)=16

g(3)+h(5)
1+16
17



c)f(1)=2.1-3
f(1)=2-3
f(1)=-1


g(-2)=2+5
g(-2)=7


h(3)=3.3+1
h(3)=9+1
h(3)=10


2.f(1)-3.g(-2)+4.h(3)
2.(-1)-3.7+4.10
-2-21+40
17

3 3 3
2014-03-19T18:50:53-03:00
Oi!!!
a)f(2)..
x=2x-3
x=2x3-2=
x=2x1/5=0,5... já faço as outras...