Question

qual é o 6 termo da pg (512,256,...)

Answer 1

an=a1*r^n-1
r=a2/a1
r=256/512
r=1/2

a6=512*1/2^6-1
a6=512*1/32
a6=16

Answer 2

512.1/2 =256.1/2=128.1/2=64.1/2=32.1/2=16