LineareAlgebra.Aufgaben01 History

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Aufgabe 4 Gegeben sind folgende Matrizen (bzw{.} Vektoren):

to:

Aufgabe 4 Gegeben sind folgende Matrizen:

Changed lines 54-58 from:

3x-y+z+u & = & -7
x+2y-z+2u & = & -4
x-y-z-u & = & -1
2x+y+2z+u & =&-1 \end{eqnarray*}

to:

3x-y+z+u & = & -7 \\ x+2y-z+2u & = & -4\\ x-y-z-u & = & -1 \\ 2x+y+2z+u & =&-1 \end{eqnarray*}

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to:

Aufgabe 6 Löse das folgende Gleichungssystem mit Hilfe des Gauß-Algorithmus. $$ \begin{eqnarray*} 3x-y+z+u & = & -7
x+2y-z+2u & = & -4
x-y-z-u & = & -1
2x+y+2z+u & =&-1 \end{eqnarray*} $$

Changed lines 41-44 from:

2x+4z & = & 1 + y
-3x+2y & = & 3
2y & = & 2+6z \end{array}

to:

2x+4z & = & 1 + y \\ -3x+2y & = & 3\\ 2y & = & 2+6z \end{array}

Changed lines 38-55 from:
to:

Aufgabe 5 Stelle das lineare Gleichungssystem in Matrixschreibweise dar und löse es. Die benötigte inverse Matrix findet sich unter den vier angegebenen. $$ \begin{array}{rcl} 2x+4z & = & 1 + y
-3x+2y & = & 3
2y & = & 2+6z \end{array} $$

$$ \scriptsize\frac{1}{30}\cdot\left(\begin{array}{ccc}8 &-2 & 8\\ 18 & 12 & 12 \\ 6 & 2 & -1\end{array}\right)\qquad\quad \frac{1}{30}\cdot\left(\begin{array}{ccc}12 &-2 & 8\\ 6 & 4 & 4 \\ 6 & 4 & -1\end{array}\right)\qquad\quad \frac{1}{30}\cdot\left(\begin{array}{ccc}12 &-2 & 8\\ 18 & 12 & 12 \\ 6 & 4 & -1\end{array}\right)\qquad\quad \frac{1}{30}\cdot\left(\begin{array}{ccc}12 &-2 & -8\\ 8 & 12 & 12 \\ 6 & 4 & -1\end{array}\right) $$

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E=\left(\begin{array}{cc}-1 &-4 \\ 3 & 2 \end{array}\right),\quad

	F=\left(\begin{array}{c}-1 \\ 2 \\ 3 \end{array}\right),\quad
	G=\left(\begin{array}{cc}5 & 7 \end{array}\right)
to:

E=\left(\begin{array}{cc}-1 &-4 \\ 3 & 2 \end{array}\right),\quad F=\left(\begin{array}{c}-1 \\ 2 \\ 3 \end{array}\right),\quad G=\left(\begin{array}{cc}5 & 7 \end{array}\right)

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A=\left(\begin{array}{cc}2 &3 \\ -5 & 1 \end{array}\right),\quad

	B=\left(\begin{array}{c}-3 \\-2\end{array}\right),\quad
	C=\left(\begin{array}{ccc}-1 &4 &-2 \\ 2 & 3&5 \end{array}\right),\quad
	D=\left(\begin{array}{cc}3 &1 \\ -2 & 4 \\1&-3 \end{array}\right) 
to:

A=\left(\begin{array}{cc}2 &3 \\ -5 & 1 \end{array}\right),\quad B=\left(\begin{array}{c}-3 \\-2\end{array}\right),\quad C=\left(\begin{array}{ccc}-1 &4 &-2 \\ 2 & 3&5 \end{array}\right),\quad D=\left(\begin{array}{cc}3 &1 \\ -2 & 4 \\1&-3 \end{array}\right)

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Aufgabe 4 Gegeben sind folgende Matrizen (bzw{.} Vektoren): $$ A=\left(\begin{array}{cc}2 &3 \\ -5 & 1 \end{array}\right),\quad

	B=\left(\begin{array}{c}-3 \\-2\end{array}\right),\quad
	C=\left(\begin{array}{ccc}-1 &4 &-2 \\ 2 & 3&5 \end{array}\right),\quad
	D=\left(\begin{array}{cc}3 &1 \\ -2 & 4 \\1&-3 \end{array}\right) 

$$ $$ E=\left(\begin{array}{cc}-1 &-4 \\ 3 & 2 \end{array}\right),\quad

	F=\left(\begin{array}{c}-1 \\ 2 \\ 3 \end{array}\right),\quad
	G=\left(\begin{array}{cc}5 & 7 \end{array}\right)

$$

  1. Welche der angegebenen Produkte lassen sich bilden? Warum? AB,BA,AE,EA,CD,DC,GA,GB,BG,FC,CF,ED,DE
  2. Betrachte nur B, C und G. Berechne untereinander alle möglichen Produkte.
  3. Formuliere eine Bedingung dafür, wann zwei Matrizen miteinander multipliziert werden können.
November 14, 2009, at 05:36 PM by 84.173.86.139 -
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November 14, 2009, at 10:08 AM by 84.173.96.252 -
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November 14, 2009, at 10:03 AM by 84.173.96.252 -
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November 14, 2009, at 09:56 AM by 84.173.96.252 -
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November 14, 2009, at 09:18 AM by 84.173.86.193 -
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\mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right) \quad \mbox{d)}\; A= \left( \begin{array}{cc} a & 0 \\ 1 & b\end{array} \right) \quad \mbox{e)}\; A= \left( \begin{array}{ccc} 1 & 1 & 1 \\ 0 & 1 & 1 \\ 0&0&1\end{array} \right)

to:

\mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right) \quad \mbox{d)}\; A= \left( \begin{array}{ccc} 1 & 1 & 1 \\ 0 & 1 & 1 \\ 0&0&1\end{array} \right)

November 14, 2009, at 09:17 AM by 84.173.86.193 -
Changed line 21 from:

\mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right) \quad \mbox{d)}\; A= \left( \begin{array}{cc} a & 0 \\ 1 & b\end{array} \right) \quad \mbox{e)}\; A= \left( \begin{array}{ccc} 1 & 1 & 1 \\ 0 & 1 & 1 \\ 0&0&1\end{array}

to:

\mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right) \quad \mbox{d)}\; A= \left( \begin{array}{cc} a & 0 \\ 1 & b\end{array} \right) \quad \mbox{e)}\; A= \left( \begin{array}{ccc} 1 & 1 & 1 \\ 0 & 1 & 1 \\ 0&0&1\end{array} \right)

November 14, 2009, at 09:16 AM by 84.173.86.193 -
Changed line 21 from:

\mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right)

to:

\mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right) \quad \mbox{d)}\; A= \left( \begin{array}{cc} a & 0 \\ 1 & b\end{array} \right) \quad \mbox{e)}\; A= \left( \begin{array}{ccc} 1 & 1 & 1 \\ 0 & 1 & 1 \\ 0&0&1\end{array}

November 14, 2009, at 09:14 AM by 84.173.86.193 -
Changed lines 17-22 from:

$$

to:

$$

Aufgabe 3 Berechne jeweils A^2, A^3 und A^4. $$ \mbox{a)}\; A= \left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0&0&3\end{array} \right) \quad \mbox{b)}\; A= \left( \begin{array}{ccc} 0 & 0 & 1 \\ 0 & 2 & 0 \\ 3&0&0\end{array} \right) \quad \mbox{c)}\; A= \left( \begin{array}{cc} a & 1 \\ 0 & b\end{array} \right) $$

November 14, 2009, at 09:05 AM by 84.173.86.193 -
Changed line 8 from:

\mbox{d)}\; & \left( \begin{array}{ccc} 2 & -1 & 12 \end{array} \right)\cdot \left( \begin{array}{c} 6\\ 0 \\ -3 \end{array} \right) \quad & \mbox{e)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \end{array}

to:

\mbox{d)}\; & \left( \begin{array}{ccc} 2 & -1 & 12 \end{array} \right)\cdot \left( \begin{array}{c} 6\\ 0 \\ -3 \end{array} \right) \quad & \mbox{e)}\; & \left( \begin{array}{cc} 0,3 & -2 \\ 0,7 & 0,1 \end{array} \right)\cdot \left( \begin{array}{c} 10\\ 5 \end{array} \right) \quad & \mbox{f)}\; & \left( \begin{array}{cc} \sqrt{2} & -\sqrt{3}\\ -\sqrt{2} & \sqrt{3} \end{array} \right)\cdot \left( \begin{array}{c} \sqrt{2}\\ \sqrt{3} \end{array} \right) \end{array}

November 14, 2009, at 08:59 AM by 84.173.86.193 -
Changed lines 7-8 from:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\ \mbox{ }
\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \end{array}

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\ \mbox{d)}\; & \left( \begin{array}{ccc} 2 & -1 & 12 \end{array} \right)\cdot \left( \begin{array}{c} 6\\ 0 \\ -3 \end{array} \right) \quad & \mbox{e)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \end{array}

November 14, 2009, at 08:58 AM by 84.173.86.193 -
Changed line 7 from:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\\vspace{1em} \\

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\ \mbox{ } \\

November 14, 2009, at 08:58 AM by 84.173.86.193 -
Changed line 7 from:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\ \\

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\\vspace{1em} \\

November 14, 2009, at 08:57 AM by 84.173.86.193 -
Changed line 7 from:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\ \\

November 14, 2009, at 08:57 AM by 84.173.86.193 -
Changed line 7 from:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \\

November 14, 2009, at 08:54 AM by 84.173.86.193 -
Added line 3:
Changed lines 7-8 from:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \end{array}

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right)
\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \end{array}

November 14, 2009, at 08:53 AM by 84.173.86.193 -
Changed lines 5-6 from:

\begin{array}{llll} \mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0 & 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad \end{array}

to:

\begin{array}{llllll} \mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad & \mbox{c)}\; & \left( \begin{array}{cc} 7 & -7\\ 3 & 2 \end{array} \right)\cdot \left( \begin{array}{c} -2\\ 2 \end{array} \right) \end{array}

November 14, 2009, at 08:48 AM by 84.173.86.193 -
Changed line 6 from:

\mabox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0 & 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad \end{array}

to:

\mbox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0 & 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad \end{array}

November 14, 2009, at 08:48 AM by 84.173.86.193 -
Changed lines 1-9 from:

Aufgabe 1 Bilde für die folgenden Matrizen alle möglichen Matrixprodukte:

to:

Übungsaufgaben: Rechnen mit Matrizen

Aufgabe1 Berechne. $$ \begin{array}{llll} \mabox{a)}\; & \left( \begin{array}{ccc} -3 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & -2 & 3 \end{array} \right)\cdot \left( \begin{array}{c} 1\\ 2 \\ 3 \end{array} \right) \quad & \mbox{b)}\; & \left( \begin{array}{cc} 1 & -1 \\ 3 & 0 \\ 0 & 0,5 & 0,3 \end{array} \right)\cdot \left( \begin{array}{c} 5\\ 5 \end{array} \right) \quad \end{array} $$

Aufgabe 2 Bilde für die folgenden Matrizen alle möglichen Matrixprodukte:

Changed line 1 from:

Bilde für die folgenden Matrizen alle möglichen Matrixprodukte:

to:

Aufgabe 1 Bilde für die folgenden Matrizen alle möglichen Matrixprodukte:

Changed lines 2-5 from:

$$ A= \left( \begin{array}{ccc} 1 & 4 & -2
3 & 5 & 0 \end{array} \right) \; ,\; B= \left( \begin{array}{cc} 3 & -1
0 & 2 \end{array} \right) \; ,\;

to:

$$ A= \left( \begin{array}{ccc} 1 & 4 & -2 \\ 3 & 5 & 0 \end{array} \right) \; ,\; B= \left( \begin{array}{cc} 3 & -1 \\ 0 & 2 \end{array} \right) \; ,\;

Changed lines 2-3 from:

$$ A= \left( \begin{array}{ccc} 1 & 4 & -2 \\

to:

$$ A= \left( \begin{array}{ccc} 1 & 4 & -2 \\

Deleted line 3:
Deleted line 5:
Deleted line 6:
Added lines 1-13:

Bilde für die folgenden Matrizen alle möglichen Matrixprodukte: $$ A= \left( \begin{array}{ccc} 1 & 4 & -2
3 & 5 & 0 \end{array} \right) \; ,\;

B= \left( \begin{array}{cc} 3 & -1
0 & 2 \end{array} \right) \; ,\;

C=\left( \begin{array}{ccc} 4 & 1 & 8 \\ 5 & 7 & 0 \\ 0 & 0 & 3 \end{array} \right) \; ,\;D= \left( \begin{array}{c} -2 \\ 8 \\ 1 \end{array} \right) \; ,\;

E = \left( \begin{array}{cc} 3 & 2 \end{array} \right) $$