December 18th, 2016, 09:28 AM  #1 
Newbie Joined: Dec 2016 From: Romania Posts: 2 Thanks: 0  Why is sin(3.6) NEGATIVE?
Why is sin(3.6) negative? It makes no sense. It should be positive between 90 and 90 degrees. 
December 18th, 2016, 10:03 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,826 Thanks: 2160 
Perhaps you meant between 0 and 90 degrees, but 3.6 radians exceeds 180 degrees.

December 18th, 2016, 10:40 AM  #3 
Math Team Joined: Jul 2011 From: Texas Posts: 2,980 Thanks: 1574  

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