Question

encontre as razões para cada PG abaixo:
a) (2,6,18,54,...)
b) ( 8, 2, 1/2 ,1/8,...)
c) ( 5,5,5,5,5,...)
d) (-4,8,-16,32,64)

Answer 1

a
2,6,18,54
q = 6/2 = 3 ***
b
8, 2, 1/2, 1/8 
q = 2/8 = 1/4 ***
c
5,5,5,5...
q = 5/5 = 1 ***
d
-4 , 8 - 16 , 32 ....
 q = 8/-4 =  - 2 ***