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28 June, 09:48

Consider this sequence: - 81, - 54, - 36, - 24, ...

geometric or not?

common ratio of terms? 2/3 ... - (2/3)

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Answers (1)
  1. 28 June, 13:33
    0
    If it is geometric then

    if the terms are a, b, c, d then

    b/a=c/b=d/c

    so

    -54/-81=-36/-54=-24/-36?

    2/3=2/3=2/3

    and that is the common ratio

    it is geomertic and common ratio is 2/3
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