suatu barisan geometri diketahui u5 = 48 u5 = 168 Tentukan suku pertama rasio dan suku ke-7
Jawaban:
DerGeo =
ar^4 = 768
ar² = 48
-----------(:)
r^2 = 16
r = 4
ar² = 48
16a = 48
a = 3
u7 = ar^6
u7 = 3 . 4^6
u7 = 12.288
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Jawaban:
DerGeo =
ar^4 = 768
ar² = 48
-----------(:)
r^2 = 16
r = 4
ar² = 48
16a = 48
a = 3
u7 = ar^6
u7 = 3 . 4^6
u7 = 12.288