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3 October, 00:57

Find a formula for the nth term in this

arithmetic sequence:

a1 = 8, a2 = 4, a3 = 0, 24 = - 4, ...

+1
Answers (1)
  1. 3 October, 02:17
    0
    an = - 4n + 12

    Step-by-step explanation:

    hello:

    the nth term in this arithmetic sequence is : an = a1 + (n - 1) d

    a1 = 8 d = a2-a1 = 4-8 = - 4 (common difrence)

    an = 8 + (n - 1) (-4) = 8 - 4n + 4

    an = - 4n + 12
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