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Current time: August 22, 2025, 1:40 am
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Mathematics
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The Magical Number 9
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December 30, 2015 at 4:47 pm Last Post: The Grand Nudger |
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cot(x) = cos(x)/sin(x) = 1/tan(x)?
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January 31, 2017 at 6:41 pm Last Post: Alex K |
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March 30, 2011 at 5:34 am Last Post: theVOID |
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Another challenge.
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October 15, 2013 at 12:08 pm Last Post: LastPoet |
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Scales question. What is the answer?
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December 23, 2018 at 1:43 pm Last Post: T0 Th3 M4X |
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August 2, 2012 at 10:11 pm Last Post: CliveStaples |
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February 16, 2022 at 12:15 am Last Post: Paleophyte |
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[3 Switch 3 Bulb] Puzzle
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July 9, 2015 at 12:20 pm Last Post: KUSA |
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Is mathematics discovered, developed, or both?
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December 3, 2016 at 11:12 am Last Post: Jehanne |
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Poll:
Coin Flipping Poll
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April 19, 2010 at 1:00 pm Last Post: Violet |
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A simple one
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February 22, 2010 at 11:33 am Last Post: Zhalentine |
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Particular Solution to Differential Equation
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November 6, 2015 at 8:33 am Last Post: SteelCurtain |
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Where can I find this all cheaper
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January 25, 2014 at 3:32 am Last Post: Lemonvariable72 |
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This number is illegal in the USA
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May 7, 2016 at 10:51 pm Last Post: J a c k |
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Adding infinitesimals
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March 18, 2016 at 12:09 am Last Post: Fireball |
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October 17, 2008 at 1:14 pm Last Post: josef rosenkranz |
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Statistics
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April 3, 2013 at 9:47 pm Last Post: Tex |
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Do you know this one?
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June 4, 2012 at 11:23 pm Last Post: Whateverist |
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January 11, 2014 at 1:02 pm Last Post: MindForgedManacle |
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Improving problem solving.
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January 10, 2017 at 9:51 am Last Post: ErGingerbreadMandude |
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