a1=1944
an=a1*q^(n-1)
n=2+4=6
8=1944*q^(6-1)
8/1944=q^5
1/243=3^(-5)=q^5
3^(-1)=q
q=1/3
a2=1944/3=648
a3=648/3=216
a4=216/3=72
a5=72/3=24
a6=8
PG
u1 = 1944
u6 = 8
u6 = u1*q^5
u6 = 1944*q^5 = 8
q^5 = 8/1944 = 1/243 = (1/3)^5
q = 1/3
u2 = 1944/3 = 648
u3 = 648/3 = 216
u4 = 216/3 = 72
u5 = 72/3 = 24
u6 = 24/3 = 8
pronto
(8,24,72,216,648,1944)
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Verified answer
a1=1944
an=a1*q^(n-1)
n=2+4=6
8=1944*q^(6-1)
8/1944=q^5
1/243=3^(-5)=q^5
3^(-1)=q
q=1/3
a1=1944
a2=1944/3=648
a3=648/3=216
a4=216/3=72
a5=72/3=24
a6=8
PG
u1 = 1944
u6 = 8
u6 = u1*q^5
u6 = 1944*q^5 = 8
q^5 = 8/1944 = 1/243 = (1/3)^5
q = 1/3
u1 = 1944
u2 = 1944/3 = 648
u3 = 648/3 = 216
u4 = 216/3 = 72
u5 = 72/3 = 24
u6 = 24/3 = 8
pronto
(8,24,72,216,648,1944)