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26 August, 14:15

Find the 104 term of the sequence - 2,1,4,7, ...

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  1. 26 August, 14:42
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    307.

    Step-by-step explanation:

    Arithmetic sequence with first term a1 = - 2 and common difference d = 1 - - 2 = 3

    an = a1 + d (n - 1), so

    a104 = - 2 + 3 (104 - 1)

    = - 2 + 309

    = 307.
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