## philly 5 years ago how to find the arc length of a function

1. Owlfred

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

2. anonymous

Let f be a function such that the derivative f' is continuous on the closed interval [a, b]. The arc length of f from x = a to x = b is the integral

3. anonymous

the length of a cuvre is the integral sum of the small infinitesimals dI. $dl=\sqrt{dx^2+dy^2}$ now integrate this over the limit [a,b] where the function is defined. PS:take dx outta the integral and u hav f' ... u now can peacefully integrate.

4. anonymous

integral from a to b sqrt(1+[f '(x)]^2) dx

5. mathteacher1729

VIDEOS: http://patrickjmt.com/tag/arc-length/ NOTES: http://tutorial.math.lamar.edu/Classes/CalcII/ArcLength.aspx INTERACTIVE GRAPH (turn on Java) http://www.math.psu.edu/dlittle/java/calculus/arclength.html Hope this helps. :)