BG: 9, 3, 1, 1/3..... Un BG (Baris Geometri) tolong dibantu ya kak
Matematika
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Pertanyaan
BG: 9, 3, 1, 1/3..... Un
BG (Baris Geometri)
tolong dibantu ya kak
BG (Baris Geometri)
tolong dibantu ya kak
1 Jawaban
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1. Jawaban Anonyme
Bab Barisan dan Deret
Matematika SMP Kelas VIII
r = U2 : U1
= 3 : 9
= 1/3
Un = a . rⁿ⁻¹
= 9 . (1/3)ⁿ⁻¹
= 9 . (1/3)ⁿ . (1/3)⁻¹
= 9 . (1/3)ⁿ . 3
= 27 . (1/3)ⁿ