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25 February, 11:35

What is the 9th term of the sequence 2,8,32,128

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Answers (2)
  1. 25 February, 11:38
    0
    The rule is: 2 (4) ^n-1

    It is a geometric sequence.

    So ...

    a (9) = 2 (4) ^8=131072

    answer: 131072
  2. 25 February, 11:48
    0
    The answer is 131,072
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