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Verified answer
Kelas 8 MatematikaBab Barisan dan Deret Bilangan
^ = pangkat
r = ^(8 - 1)√(U8/U1)
r = ^7√(384/3)
r = ^7√128
r = 2
U2 = 3 . 2 = 6
U3 = 6 . 2 = 12
U4 = 12 . 2 = 24
U5 = 24 . 2 = 48
U6 = 48 .2 = 96
U7 = 96 . 2 = 192
3, 6, 12, 24, 48, 96, 192, 384