tentukan jumlah geometri 4/9+4/3+4+...+108

[Barisan dan deret]

4/9 + 4/3 + 4 + ... + 108

Rasio = U2/U1
Rasio = (4/3)/(4/9)
Rasio = 3

Sn = a(r^n - 1)/(r - 1)
S6 = (4/9)(3^6 - 1)/(3 - 1)
S6 = (4/9)(728)/2
S6 = 1456/9