Respostas

2013-11-15T16:06:23-02:00
A_1 = 7
a_2 = 7*2 = 14
a_3 = 14*2 = 28
a_4 = 28*2 = 56
a_5 = 56*2 = 112

b)
a_1 = 5/2
a_2 = 5/20 = 1/4
a_3 = 1/40
a_4 = 1/400
a_5 = 1/4000

2) (1, 2, 4, ...)
q = 4/2 = 2
a_1 = 1
n = 10
a_10 = 1*2^(10-1)
a_10 = 2^9
a_10 = 512

Abraços







2 5 2