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6 = ar^2
U7 = ar^6
96 = ar^6
cari rasionya
U7/U3
ar^6/ar^2 = 96/6
r^4 = 16
r = akar pangkat 4 dari 16
r = 2
maka suku awal
U3 = ar^2
6 = a(2^2)
6 = a x 4
a = 6/4
a = 1,5
shingga a = 1,5 dan r=2
U5 = ar^5-1
U5 = ar^4
U5 = 1,5 x (2^4)
U5 = 1,5 x 16
U5 = 24
U7 = a . = 96
a .r2 . = 96
6 . = 96
=
= 16
r =
r = 2
a.r² = 6
a.2² = 6
a. 4 = 6
a =
U5 = a .
= . 16
= 24