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10 April, 14:11

Find the 69th term of the arithmetic sequence - 13, - 33, - 53, ...

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  1. 10 April, 14:38
    0
    -1373.

    Step-by-step explanation:

    Here the common difference is - 33 - - 13 = - 20.

    nth term = a1 + d (n - 1)

    69th term = - 13 - 20 (69 - 1)

    = - 1373.
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