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25 January, 03:22

Find the 73rd of the sequence - 1, 5, 11, ...

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  1. 25 January, 03:23
    0
    431

    Step-by-step explanation:

    This is an arithmetic sequence with first term a₁ = - 1 and common difference d = 6.

    The nth term of an arithmetic sequence is:

    a = a₁ + d (n - 1)

    The 73rd term is:

    a = - 1 + 6 (73 - 1)

    a = 431
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