Find u\displaystyle {u} from the differential equation and initial condition.

dudt=e1.6t3.8u,  u(0)=2.\displaystyle \frac{{{d}{u}}}{{{\left.{d}{t}\right.}}}={e}^{{{1.6}{t}-{3.8}{u}}},\ \ {u}{\left({0}\right)}={2}.

u=\displaystyle {u}=