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7 August, 12:07

The second term of a geometric sequence is 6. The common ratio of the sequence is two-thirds. Write the first five terms of the sequence and write a rule for the sequence.

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  1. 7 August, 12:28
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    A2 = 6 = a1 * (2/3)

    a1 = 6 / (2/3) = 9

    The rule for the sequence is

    ... an = 9 * (2/3) ^ (n - 1)

    The first 5 terms are

    ... 9, 6, 4, 8/3, 16/9
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