Jawabanmu

2014-03-11T12:36:28+07:00
Mungkin itu S3 nya yg 40, kalo S3 = 40 jadi nya kayak gini,, ribet caranya
U₁,U₂,U₃,
1,3,9,27
r = 3
U₁₀ = ar^{n-1} = 1.  3^{9} =19683
2014-03-11T15:56:18+07:00