User contributions for 13.4.15.88

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24 January 2014

  • 07:2807:28, 24 January 2014 diff hist +10,516‎ N Convergent series ‎ ratio test needs to look at the absolute value of the ratio. Certainly 1-2+3-4+5-6+7-8+.... does not converge, and the ratio without taking the absolute value is -1, which is r<1.
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