Can the following be solved forbin terms ofx?

$\displaystyle x=\frac{1}{4}\left(\sinh^{-1}(2b)+2b\sqrt{1+4b^2}\right)$

I post in this forum because the subject equation comes from evaluating the (arc length) integral

$\displaystyle x=\int_{0}^{b}\sqrt{1+4x^2}\,dx$,

and also becausesinh(x) is a very calculus-y function.

Thanks,

Dfrtbx