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21 October 2024
m 04:05 | 2006 AMC 10B Problems/Problem 21 (diff | hist) . . (+184) . . L314159265358979323846264 (talk | contribs) (Just a clarification of the 3 cases.) |
m 04:05 | User:Mathbrek (diff | hist) . . (+146) . . Mathbrek (talk | contribs) |