Hey guys and gals,

I just wanted to see if any one can explain to me how to derive the arc length of y=e^x; 0<x<1.

I know the formula to finding the arc length is the square root of 1 + (dy/dx)^2 in the integrand. my question is how do you go from √(1 + u²)/u du to √(1 + u²)/u². Can some one help out?

thanks in advance,

Jose