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Verified answer
Jumlah deret geometri tak hinggaS = a / (1 - r)
128 = 8 / ( 1 - r )
1 - r = 8 /128
1 - r = 1/16
1 - 1/16 = r
15/16 = r
maka nilai rasionya = 15/16 ✔️
semoga jelas dan membantu
keterangan:
r = rasio deret
S = jumlah deret tak hingga
a = suku pertama