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Timeline for How to solve $f(f(x)) = \cos(x)$?

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Apr 13, 2017 at 12:19 history edited CommunityBot
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Mar 15, 2017 at 15:33 history edited Gottfried Helms CC BY-SA 3.0
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Mar 15, 2017 at 15:20 history edited Gottfried Helms CC BY-SA 3.0
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Mar 15, 2017 at 13:32 history answered Gottfried Helms CC BY-SA 3.0