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Posted: 11/12/2015 7:32:27 PM EDT
[#1]
You are probably a victim of rounding, the angles in the 3-4-5 triangle have an infinite number of digits past the decimal point. What values were you getting? Also try doing the the calculations using the values in this image and see how they match up:  |
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Posted: 11/12/2015 7:43:17 PM EDT
[#2]
Cosine in a 345 triangle is either 0.6 or 0.8, depending on which angle.
InvCos is going be an irrational number. |
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Posted: 11/13/2015 1:09:55 AM EDT
[#3]
As has been covered, rounding got you
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Posted: 11/13/2015 10:13:34 PM EDT
[#4]
Round-off error, ok I can live with that.
Been a looooong time since the trig functions entered my life. Thanks for the help |
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Posted: 12/3/2015 8:55:41 PM EDT
[#6]
Quote HistoryQuoted:
<a href="http://s249.photobucket.com/user/sergtjim/media/cos-b-700x437.jpg.html" target="_blank">http://i249.photobucket.com/albums/gg216/sergtjim/cos-b-700x437.jpg~original</a> 
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