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23 September, 15:12

D (n) = - 5 (1/2) n-1

What is the 3rd term in the sequence?

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Answers (2)
  1. 23 September, 16:47
    0
    -5/4

    Step-by-step explanation:

    1. This is an explicit formula

    All we have to do is plug n = 3 in the formula to find the 3rd term.

    2. d (3) = -5 (1/2) 3-1

    = - 5/4
  2. 23 September, 18:22
    0
    -5

    Step-by-step explanation:

    dₙ = - 5 (1/2) n-1

    the 3rd term in the sequence means n = 3

    d₃ = - 5 (1/2) (3-1) = - 5 (1/2) (2) = - 5
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