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9 June, 00:00

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

b (n)

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  1. 9 June, 00:45
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    Step-by-step explanation:

    r=6/2=3

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

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