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math

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How do you find the nth term in a sequence of numbers if the values are increasing then decreasing? Ex. 1: -2, 3: 10, 5: -18

  • math - ,

    There are probably more than one "correct" answer.


    1: -2, 3: 10, 5: -18
    I think of it as two separate series interleaved together, namely:
    1, 3, 5, 7, 9....
    and
    -2, 10, -18, 26, -34, ....
    Your teacher has the final word.

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