Question

1) Dê a razão da P.A dada: a) (10,1316,19,22)
b) (-3,2,7,12,17,22)
c) (2,5,8,11,14,...)
d) (3,9,15,21,...)
e) (3,6,9,12,15,18)

2) Determinar a razão da P.G.
A) P.G (3,12,48,... )
B) P.G (10,5,...)
C) P.G (5, -15,...)
D) P.G (2,6,18,54,...)

Answer 1

Resposta:

1) Dê a razão da P.A dada:

a) (10,1316,19,22)=r=3

b) (-3,2,7,12,17,22)= 5

c) (2,5,8,11,14,...)= 3

d) (3,9,15,21,...)= 6

e) (3,6,9,12,15,18)= 3

2) Determinar a razão da P.G.

A) P.G (3,12,48,... )= 4

B) P.G (10,5,...)= 1/2

C) P.G (5, -15,...)= -3

D) P.G (2,6,18,54,...)= 3