October 2018 2 54 Report
Diketahui pola bilangan 4,-8,16,-32,64,-128,...rumus suku ke-n barisan bilangan tersebut adalah...
a. Un=(-2)pangkat n+2
b.Un=(-2)pangkat n+1
c.Un=(-2)pangkat n-1
d. Un = (-2) pangkat n

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