Talk:Trigonometric functions: Difference between revisions

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m The Three Degrees?
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Revolver: you are right, I misinterpreted. I thought you meant only infinite series and those two limits specifically on the trig identity page.--[[User:Dissipate|Dissipate]] 03:02, 29 Jun 2004 (UTC)
 
 
===Multiple of 3 deg===
Is it true that you can calculate the exact value of the sin or cos of any multiple of 3 deg (π / 60), as stated in this article? This looks to me like a typo for multiples of thirty degrees, which I would agree can be done by hand. Can anyone work out sin (39 deg) exactly by hand? (no calculators allowed) [[User:Icairns|Ian Cairns]] 23:58, 4 Jul 2004 (UTC)