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r = 2
U6 = arpangkat n-1
12 x 2 pangkat 6-1
12 x 32
384
S6 = a(rpangkat n - 1)/r-1
12 (128 -1)/ 2-1
12 x 127
1524
Kalo ada yang salah tolong kasih tau ya.....
ket ..
a = suku pertama = 12
r = Rasio = =
n = suku ke n = 6
jadi --> = 12 ()
= 12 ( )
= 12 ( )
=
=
Nah jadi suku ke 6 nya adalah =
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