Question

determine a razao q de cada pg A) (1,3,9...) B) (16,8,4...) C) (9,9,9...) d) (-6<-24,-9...) E) (1/4,1,4...)

Answer 1

A) (1,3,9...)  ==>  q = 3/1 ==> q = 3        V  

B) (16,8,4...)  ==>  q = 8/16 ==> q = 1/2   V

C) (9,9,9...)    ==>  q = 9/9 ==> q = 1   V

d) (-6,-24,-9...)  ==>  q = -24/-6 ==> q = 4  ;  q = -9/-24 ==> q= 9/24 = 3/8  

E) (1/4,1,4...)   ==>  q = 1/4/1 ==> q = 1/4  ; q = 4/1 ==> q = 4 

Logo, as letras D e E não são P.G.