- #1

Saterial

- 54

- 0

## Homework Statement

∫√(1+x

^{2})/x dx

## Homework Equations

## The Attempt at a Solution

Let u = 1+x

^{2}

du = 2xdx

1/2du=xdx

x=√(u-1)

∫√1+x

^{2}/x dx

=∫√u/√(u-1) du

or is it 1/2∫√udu as xdx would remove it. This is where I got confused.