\copyrightVincent

\begin{saveblock}{formDocFrag}
	\begin{highlightblock}[gobble=8,linewidth=25em,linewidth=\textwidth]
		De trigonometrische identiteit
		is $ \sin^2(\theta) + \cos^2(\theta) = 1 $.
	\end{highlightblock}
\end{saveblock}

\begin{saveblock}{formDocFragEN}
	\begin{highlightblock}[gobble=8,linewidth=25em,linewidth=\textwidth]
		The trigonometric identity
		is $ \sin^2(\theta) + \cos^2(\theta) = 1 $.
	\end{highlightblock}
\end{saveblock}

\begin{saveblock}{mathPackages}
	\begin{highlightblock}[gobble=8,linewidth=\textwidth]
		\usepackage{amsmath,amssymb}
		\usepackage{commath,mathtools}
	\end{highlightblock}
\end{saveblock}

\addtorecentlist{\$ \$}

\begin{frame}{\lang,Formulas,Formules,}
	\centering
	\adjustbox{cfbox=red!80!black 1.5pt 3pt}{
		\lang
		{The trigonometric identity is}
		{De trigonometrische identiteit is}
		$ \sin^2(\theta) + \cos^2(\theta) = 1 $.
	}
	
	\vspace{10pt}
	\begin{center}%
		\uncover<2->{\useblock{formDocFrag\langsuffix}}%
		% \adjustbox{set height=2cm,margin=2px}{%
		% 	\only<2->{\useblock{formDocFrag}}%
		% }%
	\end{center}

	\begin{center}
		\only<3->{\useblock{mathPackages}}
	\end{center}
\end{frame}