February 26th, 2009, 06:55 PM  #1 
Newbie Joined: Feb 2009 Posts: 1 Thanks: 0  Calculating Arc Length
Hi, I have tried to do this problem for the last hour and Webassign is NOT liking my answer. Find the length of the arc: on Here is what I got using the arc length formula: I get for my answer: which is the wrong answer. I don't think I'm doing these correctly. Can someone go through the steps? 
February 27th, 2009, 06:29 PM  #2  
Senior Member Joined: Feb 2009 From: Adelaide, Australia Posts: 1,519 Thanks: 3  Re: Calculating Arc Length Quote:
Use this instead: (There are no further complications, as cosh is positive for real arguments.)  

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