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32 x r^2 = 8
r^2 = 8/32
r^2 = 1/4
r = 1/2 =
karena r kurang dari 1 maka pake rumus
Sn = U1 (1 - r^n) / 1-r
S5 =
=
=
r^2 = 8/32
r ^2 = 1/4
r = 1/2
jumlah 5 suku = a(1-r^5) / 1-r
jumlah 5 suku = 32(1-1/2^5) / 1-0,5
jumlah = 62