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\begin{document}{
Josip Deak

\begin{center}
\Large{ \textbf{zadatak $1$\ }}\\[1mm]
\end{center}

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\begin{flushleft}
Doka\v{z}ite ili opovrgnite sljede\v{c}u tvrdnju:
$$ \underbrace { d^{*}(ab^{+}cd^{*} + a^{*}bd^{+})^{+}a^{*} }_{:=L_{1}} =
\underbrace { (ab^{+}cd^{*} + e^{*}bd^{+})^{*} }_{:=L_{2}} $$
\end{flushleft}

\medskip
\begin{flushleft}\underline{\textbf{Rj:}} \\
  \qquad Jednakost o\v{c}ito ne vrijedi, po\v{s}to je \quad $e \in L_{2}$ \quad i \quad $e \not \in L_{1}$
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 \medskip
 \begin{description} \item[nap]: \\
 \qquad \small{ To\v{c}no rije\v{s}en zadatak nosi petnaest ($15$) bodova   }
 \end{description}
\end{document} 