what is the sequence property called when you get -1 +1 -1 +1 etc. thanks!
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I think you are looking for "alternating series"
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: .$\displaystyle (-1)^n\:\text{ for }n \,=\,1,2,3,\hdots$
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