Talk:Trigonometric functions: Difference between revisions

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Accepting the point that "not monotonic" is not sufficient for requiring a restricted ___domain for an inverse, I think that the phrase "both continuous and not monotonic" is not the solution. Not all the functions are continuous. I have edited to replace the phrase simply with the word "periodic". This is (much) more than sufficient to require a restricted ___domain for the inverse, but has the benefit of consistency with other reasons for restricting the ___domain.
--[[User:Al-khowarizmi|Richard Jones]] 20:54, 8 Mar 2004 (UTC)
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This was just added, and I have to admit I don't really understand it: