Posted by **Anonymous** on Sunday, August 3, 2014 at 2:29pm.

When a chain hangs under its own weight, its shape is a catenary (from the Latin word for chain). The equation of a catenary with a vertex on the y-axis is . Find the length of the chain from . Then use the same technique from Problem #8 to find the length of the parabola with the same vertex and endpoints.

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