Question

8) Determine a razão das seguintes PG:
a) PG( 3,9,27,81)
b) PG(2,2,2,2)
c) PG(2,-8,32,-128)
d) PG(-1,5,-25,125,-625)​

Answer 1

Q = a1/a2

a)(3,9,27,81)

Q = 9/3

Q = 3

b)(2,-6,18,-54)

Q = -6/2

Q = -3

c)(20,10,5,5/2)

Q = 10/20

Q = 1/2

d)(3,3,3...)

Q = 3/3

Q = 1

e)(-4,-20,-100...)

Q = -20/-4

Q = 5

f)(-1,-5,-25,125,-625)

Q = -5/-1

Q = 5

Answer 2

Resposta:

a- 3,b- 1,c -4, d- -5

Explicação passo a passo: