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Math Help - terminology

  1. #1
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    terminology

    what is the sequence property called when you get -1 +1 -1 +1 etc.

    thanks!
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  2. #2
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    I think you are looking for "alternating series"
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  3. #3
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    Hello, ricey!

    What is the sequence property called when you get: -1, +1, -1, +1, etc.

    I suppose it might be called an "alternating sequence".

    . . FYI: The general term is: . (-1)^n\:\text{ for }n \,=\,1,2,3,\hdots

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