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1965 AHSME Problems/Problem 20: Revision history

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18 July 2024

23 June 2016

10 June 2016

  • curprev 10:1610:16, 10 June 2016 Dot22 talk contribs 429 bytes +429 Created page with "In order to calculate the <math>r</math>th term of this arithmetic sequence, we can subtract the sum of the first <math>r-1</math> terms from the sum of the first <math>r</mat..."
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