Thread: Length of a curve

I'm having problems with this length of a curve question. The question is: find the length of the curve y=ln(x^2-1), from x=2 to x=3.

I know the formula and plugged in the derivative squared into the formula, but there is a really weird integral that I can't figure out. Any help here? Thanks.

And what's that weird integral?

Would you like to show us your procedure?