Question

encontre 9 termo da p.g.(2,4...)

Answer 1

a1 = 2
a2 =4
q = 4/2 = 2 ****
n = 9
a9 = a1q^(n-1)
a9 = 2* 2^8
A9 = 2 * 256 = 512 ****

PG { 2,4,8,16,32,64,128,256, 512  ...}