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13 January, 21:31

Write down the nth term of this sequence ... 8, 11, 14, 17, 20

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  1. 13 January, 23:37
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    Seems to be an arythmetic sequence

    common difference is 3 (increases by 3 each time)

    an=a1+d (n-1)

    d=3

    a1=8

    an=8+3 (n-1)

    an=8+3n-3

    an=3n+5
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