Show that a scalar integral over a parametrized curve is unchanged if you reparametrize it. Show that a scalar integral over the parametrized curve $(\ln (t), t, t)$ for $t \in [2, 4]$ is unchanged if the curve is reparametrized.

I have no idea how to show this.
The parameterization is not unique. So can take any other parameters and solve the question .it will show the same.
The parameterization is not unique. So can take any other parameters and solve the question .it will show the same.