Respostas

2014-08-13T11:57:15-03:00
Razão = 5-2 =3
Termo geral = an = a1+(n-1)*r
an= 2+(n-1)*3 = 2+3n-3 = 3n-1
termo geral dessa PA = 3n-1
2014-08-13T12:00:51-03:00
(2,5,8,11,14,17,20,23,26,29,32,35,38,41....)
3