100 Days Happier: Daily Inspiration for Life-Long Happiness

100 Days Happier: Daily Inspiration for Life-Long Happiness

Matematika Diketahui barisan geometri: 3, 9, 27, 81, Suku ke-7 barisan tersebut adalah....​

Diketahui barisan geometri: 3, 9, 27, 81, Suku ke-7 barisan tersebut adalah....​

Jawaban:

3 , 9 , 27 , 81 , ...

a = 3

r = 9/3 = 3

U7 = ar⁶ = 3 . (3)⁶ = 3⁷ = 2.187

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