January 4th, 2011, 07:22 AM  #1 
Newbie Joined: Dec 2010 Posts: 11 Thanks: 0  Length of a curve
I have a task to calculate the length of the curve. Does anyone know outcome? I big idiot(( http://www.sdilej.eu/pics/ee9c6c683321b ... 9b4eea.jpg Could anyone help me please? 
January 4th, 2011, 08:33 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs  Re: Length of a curve
You are asked to find the arc length on from x = 0 to x = 3. I would write thus We know the integrand will have as the radicand: Since this expression is nonnegative on the given interval, the arc length s may be written: Because the integrand is unbounded at x = 0, we have an improper integral and should use: 
January 7th, 2011, 08:22 AM  #3 
Newbie Joined: Dec 2010 Posts: 11 Thanks: 0  Re: Length of a curve
thanks )


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