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29 March, 06:34

Find an explicit formula for the geometric sequence 2, 6, 18, 54, ...

b (n)

+1
Answers (1)
  1. 29 March, 07:03
    0
    Step-by-step explanation:

    r=6/2=3

    b (n) = ar^{n-1}

    b (n) = 2 (3) ^{n-1}
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