Respostas

2013-12-13T00:09:23-02:00
Se f(6)=20, temos,

f(6)=a(6)+2=20
6a=20-2
a=18/6
a=3
2013-12-13T00:48:10-02:00
F(6)=20
ax+2
a6+2=20
a6=20-2
a6=18
a=18/6
a=3