Respostas

2013-11-25T14:47:52-02:00
An = a1+(n-1).r
243 = 1+(6-1).r
243 = 1+5r
5r = 242
r = 242/5
a1 = 1 = 5/5
a2 = 5/5+242/5 = 247/5
a3 = 247/5+242/5 = 489/5
a4 = 489/5+242/5 = 731/5
a5 = 731/5+242/5 = 973/5
a6 = 973/5 + 242/5 = 1215/5 = 243

PA (1, 247/5, 489/5, 731/5, 973/5, 243)