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I want to solve this equation $$\sin(\sin(\sin(\sin x)))=\cos(\cos(\cos(\cos x))),$$ but I don't know how to solve.

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    $\begingroup$ "Numerically" is probably the only way forward here. $\endgroup$ Feb 20, 2013 at 16:19

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No real solutions.
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Do you want complex solutions?

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  • $\begingroup$ This is not a solution. $\endgroup$ Feb 21, 2013 at 0:17
  • $\begingroup$ Assume he does because then the question is pointless. $\endgroup$ Aug 5, 2013 at 22:44

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