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3 November, 13:34

Write an explicit formula for the sequence - 4, 1, 6, 11

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  1. 3 November, 13:40
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    an=5n-9

    Step-by-step explanation:

    a1=-4

    c. d. d=1 - (-4) = 1+4=5

    if an = nth term then

    an=-4 + (n-1) 5

    or an=-4+5n-5

    or an=5n-9
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