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7 March, 09:41

Given the list of terms 1/3 , 1, 5/3, 7/3, ... Find the 15th and - 16th term.

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  1. 7 March, 13:19
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    15th term = 29/3

    16th term = 31/3

    Step-by-step explanation:

    Given an arithmetic sequence with the first term a1 and the common difference d, the nth (or general) term is given by an=a1 + (n-1) d.

    First we find the 15th term

    n=15

    a1=1/3

    d=1 - 1/3 = 2/3

    Solution

    1/3 + (15-1) 2/3

    1/3+28/3

    (1+28) / 3

    29/3

    Lets find the 16th term

    1/3 + (16-1) 2/3

    1/3+30/3

    (1+30) / 3

    31/3
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