February 18th, 2009, 04:58 AM  #1 
Newbie Joined: Feb 2009 Posts: 2 Thanks: 0  Calc length by integration
So I have this problem: determine the length of the curve defined by between the points and . I've gotten this far: . I still have to substitute , but after that how do I turn this into an integral? I've been at this for an hour (.'). Help... 
February 18th, 2009, 06:00 AM  #2  
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,974 Thanks: 1156 Math Focus: Elementary mathematics and beyond  Re: Calc length by integration Quote:
 
February 18th, 2009, 02:32 PM  #3  
Global Moderator Joined: May 2007 Posts: 6,852 Thanks: 743  Re: Calc length by integration Quote:
 
February 18th, 2009, 03:13 PM  #4 
Newbie Joined: Feb 2009 Posts: 2 Thanks: 0  Re: Calc length by integration
Should've done a quick search first, sorry. So we're at: And I'm stumped again... There's no formula for the integral of g after f (as far as I know.) (I didn't really understand your explanation. Way too advanced for me...) (BTW, I have a test tomorrow. *shivers*) 
February 18th, 2009, 04:09 PM  #5  
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,974 Thanks: 1156 Math Focus: Elementary mathematics and beyond  Re: Calc length by integration Quote:
I've tried working this one out using trig substitution and the like, but had no success. That's not to say there isn't an answer, though. Just seems to me to be quite complicated.  

Tags 
calc, integration, length 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
calc II integration confusion.  Icarus  Calculus  4  August 18th, 2012 01:17 PM 
Should I skip trig and pre calc and go straight to Calc?  trekster  New Users  5  January 13th, 2012 03:13 PM 
calc. help  calc. route based on waypoints, angle and speed  miroslav_karpis  Algebra  1  February 16th, 2009 08:00 AM 
Calc 1 integration help  diggidy  Calculus  7  November 25th, 2008 10:59 AM 
Homework HelpCalc 1Integration  rockfan0005  Calculus  1  July 23rd, 2008 02:39 PM 