Jawaban:
DerGeo =
ar^4 = 24
ar = 3
--------(:)
r^3 = 8
a(2) = 3
2a = 3
Suku ke n =
Un = ar^(n-1)
Un = 3/2 . 2^(n-1)
Un = 3/2 . 2^n / 2
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Jawaban:
DerGeo =
ar^4 = 24
ar = 3
--------(:)
r^3 = 8
r = 2
ar = 3
a(2) = 3
2a = 3
a = 3/2
Suku ke n =
Un = ar^(n-1)
Un = 3/2 . 2^(n-1)
Un = 3/2 . 2^n / 2
Un = 3/4 . 2^n