4.4 Übungen -3e)
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4-4.tex
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4-4.tex
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@ -233,5 +233,29 @@ $\left(\begin{matrix}
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0&0&0&-3
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\end{matrix}\right)$
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IV: $0=-3\Rightarrow\mathbb{L}=\{\}$
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\item %e
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\begin{tabular}{c}
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-I zu II add\\
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-2I zu III add\\
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-I zu IV add
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\end{tabular}
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$\left(\begin{matrix}
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1&1&0&2&2\\
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0&0&2&-1&-2\\
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0&0&2&-1&-2\\
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0&0&4&-2&-4
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\end{matrix}\right)$
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Da $2II=2III=IV$ alle die gleichen Aussagen sind, brauchen wir nur II zu behalten und können das 2x4-LGS lösen.
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\begin{align}
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II:&&2x_3-x_4&=-2&&|x_3=q\\
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&&x_4&=2q+2\\
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I:&&
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x_1+x_2+2q+2&=2&&|x_2=p\\
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&&x_1&=-2q-p&\Rightarrow&\mathbb{L}=\{(-2q-p,p,q,2q+2)\}
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\end{align}
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\end{enumerate}
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\end{document}
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