Respostas

2014-03-25T09:46:58-03:00
A)A1= 4*1-1=3
A4= 4*4-1= 15

7+2*15=37

b) A5=4*5-1= 19
A6=4*6-1=23
(19)2+(23)2
38+46=84
2 3 2