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2 January, 09:00

Given the geometric sequence where a1 = 5 and the common ratio is - 3, what is the domain for n?

All integers where n ≥ 0

All integers where n ≥ 1

All integers where n ≥ 5

All integers where ≤ 5

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Answers (1)
  1. 2 January, 12:57
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    A1 = 5

    common ratio = - 3

    a2 = 5 x - 3 = - 15

    a3 = - 15 x - 3 = 45

    a4 = 45 x - 3 = - 135

    a (n) = 1st term * common ratio

    all integers where n > 1
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