Latihan Matematika Wajib Kelas XI Pola Bilangan
# 1
Pilgan

Rumus jumlah nn suku pertama deret geometri 9+3+1+13+…9+3+1+\frac{1}{3}+\dots adalah ....

A

9(1−(12)n)9\left(1-\left(\frac{1}{2}\right)^n\right)

B

272(1−(12)n)\frac{27}{2}\left(1-\left(\frac{1}{2}\right)^n\right)

C

9(1−(13)n)9\left(1-\left(\frac{1}{3}\right)^n\right)

D

272(1−(13)n)\frac{27}{2}\left(1-\left(\frac{1}{3}\right)^n\right)

E

27(1−(13)n)27\left(1-\left(\frac{1}{3}\right)^n\right)

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