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@ -37,24 +37,6 @@
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\section{Allgemeines}
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\begin{sectionbox}
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\subsection{Bruchrechnung}\label{bruchrechnung}
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\begin{itemize}
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\item
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\(\frac{a}{b}\) : \(\frac{c}{d}\) = Multiplikation mit Kehrwert =
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\(\frac{ab}{bd}\)
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\item
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Brüche kürzen: nur Faktoren, nicht Summanden!
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\begin{itemize}
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\item
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\(\frac{2}{2\ *\ 3}\) = \(\frac{2}{2}\) * \(\frac{1}{3}\) =
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\(\frac{1}{3}\)
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\end{itemize}
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\item
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Potenzen siehe „Expotentialfunktion``
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\end{itemize}
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\subsection{Zahlenmengen}\label{zahlenmengen}
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\begin{itemize}
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@ -73,35 +55,71 @@
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\subsection{Binomische Formeln}\label{binomische-formeln}
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\begin{enumerate}
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\def\labelenumi{\arabic{enumi}.}
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\item
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${(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}$
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\item
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${(a -- b)}^{2} = {a}^{2} - 2ab + {b}^{2}$
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\item
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$(a + b) (a -- b) = {a}^{2} - {b}^{2}$
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\end{enumerate}
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\begin{tablebox}{ll}
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1. Binomische Formel: & ${\left(a + b \right)}^{2} = {a}^{2} + 2ab + {b}^{2}$ \\
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2. Binomische Formel: & ${\left(a - b \right)}^{2} = {a}^{2} - 2ab + {b}^{2}$ \\
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3. Binomische Formel: & $\left(a + b \right) \left(a - b \right) = {a}^{2} - {b}^{2}$ \\
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Bnomischer Lehrsatz: & ${\left( a + b \right)}^{n} = \sum _{ k = 0 }^{ n }{ { a }^{ n-k }{ b }^{ k } } $ \\
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\end{tablebox}
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Den Binomischen Lehrsatz kannst du auch aus dem pascalschen Dreieck entnehmen.
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\subsection{Binomischer Lehrsatz}\label{binomischer-lehrsatz}
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\subsection{Sinus \& Cosinus}
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\begin{tablebox}{c|c|c|c|c}
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Bogenmaß & Grad & $\sin{x}$ & $\cos{x}$ & $\tan{x}$ \\ \hline
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$0 \pi$ & $0^\circ$ & $0$ & $1$ & $0$\\ \hline
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$\cfrac{1}{6} \pi$ & $30^\circ$ & $\cfrac{1}{2}$ & $\cfrac{1}{2}\sqrt{3}$ & $\cfrac{1}{\sqrt{3}}$\\ \hline
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$\cfrac{1}{4} \pi$ & $45^\circ$ & $\cfrac{1}{2}\sqrt{2}$ & $\cfrac{1}{2}\sqrt{2}$ & $1$\\ \hline
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$\cfrac{1}{3} \pi$ & $60^\circ$ & $\cfrac{1}{2}\sqrt{3}$ & $\cfrac{1}{2}$ & $\sqrt{3}$\\ \hline
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$\cfrac{1}{2} \pi$ & $90^\circ$ & $1$ & $0$ & $\pm \infty$\\ \hline
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$\cfrac{2}{3} \pi$ & $120^\circ$ & $\cfrac{1}{2}\sqrt{3}$ & $-\cfrac{1}{2}$ & $-\sqrt{3}$\\ \hline
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$\cfrac{3}{4} \pi$ & $135^\circ$ & $\cfrac{1}{2}\sqrt{2}$ & $-\cfrac{1}{2}\sqrt{2}$ & $-1$\\ \hline
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$\cfrac{5}{6} \pi$ & $150^\circ$ & $\cfrac{1}{2}$ & $-\cfrac{1}{2}\sqrt{3}$ & $-\cfrac{1}{\sqrt{3}}$\\ \hline
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$\cfrac{1}{1} \pi$ & $180^\circ$ & $0$ & $-1$ & $0$\\ \hline
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$\cfrac{7}{6} \pi$ & $210^\circ$ & $-\cfrac{1}{2}$ & $-\cfrac{1}{2}\sqrt{3}$ & $\cfrac{1}{\sqrt{3}}$\\ \hline
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$\cfrac{5}{4} \pi$ & $225^\circ$ & $-\cfrac{1}{2}\sqrt{2}$ & $-\cfrac{1}{2}\sqrt{2}$ & $1$\\ \hline
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$\cfrac{4}{3} \pi$ & $240^\circ$ & $-\cfrac{1}{2}\sqrt{3}$ & $-\cfrac{1}{2}$ & $\sqrt{3}$\\ \hline
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$\cfrac{3}{2} \pi$ & $270^\circ$ & $-1$ & $0$ & $\pm \infty$\\ \hline
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$\cfrac{5}{3} \pi$ & $300^\circ$ & $-\cfrac{1}{2}\sqrt{3}$ & $\cfrac{1}{2}$ & $-\sqrt{3}$\\ \hline
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$\cfrac{7}{4} \pi$ & $315^\circ$ & $-\cfrac{1}{2}\sqrt{2}$ & $\cfrac{1}{2}\sqrt{2}$ & $-1$\\ \hline
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$\cfrac{11}{6} \pi$ & $330^\circ$ & $-\cfrac{1}{2}$ & $\cfrac{1}{2}\sqrt{3}$ & $-\cfrac{1}{\sqrt{3}}$\\ \hline
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\end{tablebox}
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$\cfrac{1}{2}\sqrt{2} \cong 0.70710678$ und $\cfrac{1}{2}\sqrt{3} \cong 0.8660254$ \\ sowie $\cfrac{1}{\sqrt{3}} \cong 0577350269$
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\subsection{Bruchrechnung}\label{bruchrechnung}
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\begin{itemize}
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\item
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\({(a + b)}^{n}\) = \(\sum_{k = 0}^{n}{a^{n - k}b^{k}}\)
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\(\frac{a}{b}\) : \(\frac{c}{d}\) = Multiplikation mit Kehrwert =
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\(\frac{ab}{bd}\)
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\item
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z.b.: 1 \(\bullet\) \(a^{5} \bullet\) \(b^{0}\) + \ldots{}
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\end{itemize}
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Brüche kürzen: nur Faktoren, nicht Summanden!
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\subsection{Sinus \& Cosinus}
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\begin{tablebox}{l|l}
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$\cos 0^\circ = 1$ & $\sin 0^\circ = 0$ \\
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$\cos 30^\circ = \cfrac{1}{2}\sqrt{3} \cong 0.8660254$ & $\sin 30^\circ = \cfrac{1}{2}$ \\
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$\cos 45^\circ = \cfrac{1}{2}\sqrt{2} \cong 0.70710678$ & $\sin 45^\circ = \cfrac{1}{\sqrt{2}} \cong 0.70710678$ \\
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$\cos 90^\circ = 0$ & $\sin 90^\circ = 1$ \\
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\end{tablebox}
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\begin{itemize}
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\item
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\(\frac{2}{2\ *\ 3}\) = \(\frac{2}{2}\) * \(\frac{1}{3}\) =
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\(\frac{1}{3}\)
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\end{itemize}
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\end{itemize}
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\end{sectionbox}
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% Weiterführend Allgemeines
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% ----------------------------------------------------------------------
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\begin{sectionbox}
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\subsection{Potenzrechnung}
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\begin{tablebox}{ll}
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${a}^{n} \cdot {a}^{m} = {a}^{n+m}$ & $\frac{ {a}^{n} }{ {a}^{m} } = {a}^{n-m}$ \\
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${\left({a}^{m}\right)}^{n} = {\left({a}^{n}\right)}^{m} = {a}^{m \cdot n}$ & ${a}^{n} \cdot {b}^{n} = {\left(a \cdot b \right)}^{n}$ \\
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$\frac{{a}^{n}}{{b}^{n}} = {\left(\cfrac{a}{b}\right)}^{n}$ & ${-a}^{-1} = \cfrac{-1}{a} = \cfrac{{a}^{-1}}{-1}$\\
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${e}^{lnx} = x$ & ${a}^{-n} = \frac{1}{ {a}^{n} } $
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\end{tablebox}
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\subsection{Wurzelrechnung}
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\end{sectionbox}
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% Mengenlehre
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% ----------------------------------------------------------------------
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