Question

Determine a razão das pg? a)(3,9,27,81) b)(2,-6,18,-54) c)(20,10,5,5/2) d)(3,3,3...) e)(-4,-20,-100...) f)(-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