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when toggle format what by license comment
Apr 14, 2014 at 1:50 comment added Brett Frankel Your sums are set up correctly. Hint: These are geometric series.
Apr 14, 2014 at 1:35 review First posts
Apr 14, 2014 at 1:50
Apr 14, 2014 at 1:23 answer added vonbrand timeline score: 1
Apr 14, 2014 at 1:22 answer added MPW timeline score: 1
Apr 14, 2014 at 1:19 history edited ml0105 CC BY-SA 3.0
Please use math formatting
Apr 14, 2014 at 1:15 history asked benjamin CC BY-SA 3.0