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    \hbox{\makebox[5.1cm][l]{Universit\"at T\"ubingen}}
    \hbox{\makebox[5.1cm][l]{Fachbereich Mathematik}}
    \hbox{\makebox[5.1cm][l]{Name}} % Tagen Sie hier Ihren Namen ein
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 \vbox{%
 \hbox{\makebox[1.0cm][r]{SoSe 2020}}
 \hbox{\makebox[1.0cm][r]{xx.xx.2020}}  % Datum Ihres Portfolioeintrages
 \hbox{\makebox[1.0cm][r]{Woche 02}}    % Nummer Ihres Portfolioeintrages
}}
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\begin{center}{\Large\bf  Portfolio zur  Analysis II
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{\bf Frage 05.} Was ist ein {\sl Streckenzug} in $\R^2$, was ein {\sl Polygonzug} und wie definiert man seine
L\"ange? Was ist eine {\sl Kurve} $C\sub\R^2$ und was ist die Grundidee, um die L\"ange von $C$ zu definieren?
Geben Sie die Definition an. \\
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{\bf Antwort.}
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{\bf Frage 06.} Mit welcher Formel aus der Differential- und Integralrechnung kann man sie berechnen?
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{\bf Antwort.}
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{\bf Frage 07.}  Wie wurde in der Vorlesung die {\sl Kreiszahl} $\pi$ definiert? Warum ist damit $2\pi$ die L\"ange
des Einheitskreises?
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{\bf Antwort.}
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{\bf Frage 08.}  Wie wurde der Tangens $\tan$ in der Vorlesung definiert? Schildern Sie einige Eigenschaften von 
$\tan$.
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{\bf Antwort.}
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