Barisan geometri 8,16,32,64 tentukan a.rasio b.U6

Jawaban
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∵ Barisan Geometri => 8,16,32,64

(A) Rasio => r = 16/8 = 2

(B) U6 = ar^n-1
            = 8.2^5
            = 8.32
            = 256.

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A. rasio/ r = U2/U1
                 = 16/8
                 = 2
b. U6 = ar⁵
          = 8. (2)⁵
          = 8. 32
          = 256