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11 July, 16:54

Complete the recursive formula of the arithmetic sequence - 5,-25,-45,-65, ...

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Answers (2)
  1. 11 July, 16:58
    0
    a

    n

    =

    -

    20

    n

    +

    15

    an=-20n+15

    Step-by-step explanation:

    Use a Formula
  2. 11 July, 17:22
    0
    The recursive formula is

    a[1] = - 5

    a[n] = a[n-1] - 20

    The recursive part is the last equation.
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