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9 June, 14:23

For the sequence - 28,-16,-4,8, ... The expression that defines the nth term where a 1 = -28 is 12 - 28n 2 12 - 28 (n - 1) 3. - 28 + 12n - 28 + 12 (n - 1) Submit Answer

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  1. 9 June, 14:53
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    a₁ = - 28

    aₙ = a₁ + 12 (n-1)

    Step-by-step explanation:

    a₁ = - 28

    a₂ = - 28 + 12 (2 - 1) = - 16

    a₃ = - 28 + 12 (3 - 1) = - 4

    a₄ = - 28 + 12 (4 - 1) = 8

    aₙ = a₁ + 12 (n-1)
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