Question

Das sequencias abaixo, assinale a que representa uma PG.
(5, 7, 9, 11, 13)
(3, 6, 18, 20)
(4, 8, 12, 15)
(1/2, 1, 2, 4, 8)
(1, 5, 9, 13, 17)​

Answer 1

essa ====> (1/2, 1, 2, 4, 8)

q = 8/4=4/2=2/1=1/(1/2) = (2)