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<h1>
Loesung von Mathematik Aufgabe - Algebra Equations
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<p><b>
Levels of solution complexity 
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<p>Diese&#x00A0;&#x000D;Seite&#x00A0;&#x000D;wurde&#x00A0;&#x000D;entwickelt:&#x00A0;&#x000D;&#x00A0;&#x000D;&#x00A0;&#x000D;</p>
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<p>EMTeachline&#x00A0;&#x000D;bietet&#x00A0;&#x000D;11&#x00A0;&#x000D;Komplexitaetsstufen&#x00A0;&#x000D;(subjektive&#x00A0;&#x000D;Kenngroesse,&#x00A0;&#x000D;die&#x00A0;&#x000D;auf&#x00A0;&#x000D;der&#x00A0;&#x000D;Anzahl&#x00A0;&#x000D;von&#x00A0;&#x000D;den&#x00A0;&#x000D;fuer&#x00A0;&#x000D;die&#x00A0;&#x000D;Loesung&#x00A0;&#x000D;einer&#x00A0;&#x000D;Aufgabe&#x00A0;&#x000D;verwendeten&#x00A0;&#x000D;Formeln&#x00A0;&#x000D;und&#x00A0;&#x000D;Methoden&#x00A0;&#x000D;beruht)&#x00A0;&#x000D;der&#x00A0;&#x000D;Aufgaben&#x00A0;&#x000D;an.&#x00A0;&#x000D;</p>
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<table width="610"><tr><td width="100"><a href="jawascript:void(0)" onClick="window.open('../../topic.htm','WindowName','width=250,height=420,scrollbars=yes,resizable=yes,toolbar=no,status=no'); return false;"><b>Thema  </b></a></td><td width="14" class="tableh1"><a href="../../arithmetic/3/0.xml" target="_parent"><div align="center">1</div></a></td><td width="14" class="tableh1"><a href="../../algebra_calculas/3/0.xml" target="_parent"><div align="center">2</div></a></td><td width="14" class="tableh1"><a href="../../algebra_identities/3/0.xml" target="_parent"><div align="center">3</div></a></td><td width="14" class="tableh1"><a href="../../algebra_prof_inequalities/3/0.xml" target="_parent"><div align="center">4</div></a></td><td width="14" class="tableh1"><div align="center"><font color="FF9900">5</font></div></td><td width="14" class="tableh1"><a href="../../algebra_inequalities/3/0.xml" target="_parent"><div align="center">6</div></a></td><td width="14" class="tableh1"><a href="../../trigonometry_calculas/3/0.xml" target="_parent"><div align="center">7</div></a></td><td width="14" class="tableh1"><a href="../../trigonometry_identities/3/0.xml" target="_parent"><div align="center">8</div></a></td><td width="14" class="tableh1"><a href="../../trigonometry_equations/3/0.xml" target="_parent"><div align="center">9</div></a></td><td width="14" class="tableh1"><a href="../../trigonometry_calculas_arcus/3/0.xml" target="_parent"><div align="center">10</div></a></td><td width="14" class="tableh1"><a href="../../trigonometry_identities_arcus/3/0.xml" target="_parent"><div align="center">11</div></a></td><td width="14" class="tableh1"><a href="../../trigonometry_equations_arcus/3/0.xml" target="_parent"><div align="center">12</div></a></td><td width="14" class="tableh1"><a href="../../hyperbolic_calculas/3/0.xml" target="_parent"><div align="center">13</div></a></td><td width="14" class="tableh1"><a href="../../hyperbolic_identities/3/0.xml" target="_parent"><div align="center">14</div></a></td><td width="14" class="tableh1"><a href="../../hyperbolic_equations/3/0.xml" target="_parent"><div align="center">15</div></a></td><td width="300"><div align="right"><b><font color="FF9900">Algebra&#x00A0;&#x000D;Equations</font></b></div></td></tr><tr><td width="100"><b>Komplexitaet</b></td><td width="14" class="tableh1"><a href="../1/0.xml" target="_parent"><div align="center">1</div></a></td><td width="14" class="tableh1"><a href="../2/0.xml" target="_parent"><div align="center">2</div></a></td><td width="14" class="tableh1"><div align="center"><font color="FF9900">3</font></div></td><td width="14" class="tableh1"><a href="../4/0.xml" target="_parent"><div align="center">4</div></a></td><td width="14" class="tableh1"><a href="../5/0.xml" target="_parent"><div align="center">5</div></a></td><td width="14" class="tableh1"><a href="../6/0.xml" target="_parent"><div align="center">6</div></a></td><td width="14" class="tableh1"><a href="../7/0.xml" target="_parent"><div align="center">7</div></a></td><td width="14" class="tableh1"><a href="../8/0.xml" target="_parent"><div align="center">8</div></a></td><td width="14" class="tableh1"><a href="../9/0.xml" target="_parent"><div align="center">9</div></a></td><td width="14" class="tableh1"><a href="../10/0.xml" target="_parent"><div align="center">10</div></a></td><td width="14" class="tableh1"><a href="../11/0.xml" target="_parent"><div align="center">11</div></a></td><td width="14" class="tableh1"></td><td width="14" class="tableh1"></td><td width="14" class="tableh1"></td><td width="14" class="tableh1"></td><td width="300"><div align="right"><b><font color="FF9900">Komplexitaetsstufe:&#x00A0;&#x000D;&#x00A0;&#x000D;</font>3</b></div></td></tr></table>
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<b>Die Gleichung ist zu loesen</b>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mfrac>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>18 </mi><msup><mi>z</mi><mi>2</mi></msup></mrow><mrow><mo>+</mo><mi>15 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>18 </mi></mrow></mrow>
</mrow>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow></mfrac></mrow>
<mo>-</mo>
<mrow><mfrac>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi><msup><mi>z</mi><mi>2</mi></msup></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>9 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>81 </mi></mrow></mrow>
</mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow></mfrac></mrow>
<mo>+</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont1"></a>
<p>1. Bestimmen Sie den zulaessigen Wertebereich (D(f)) fuer vorliegenden Ausdruck, davon ausgehend, dass die Division durch Null nicht ausfuehrbar ist.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow><mo>{</mo>
<mtable>
<mtr>
<mtd>
<mrow>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
<mo>&#x2260;</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
<mo>&#x2260;</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</mtd>
</mtr>
</mtable>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont2"></a>
<p>2. Loesen Sie die lineare Gleichung unter Anwendung der Eigenschaften der Aequivalenz der Gleichungen bezueglich der Addition und Multiplikation.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow><mo>{</mo>
<mtable>
<mtr>
<mtd>
<mrow>
<mrow>
<mrow><mrow><mi>z</mi></mrow></mrow>
<mo>&#x2260;</mo>
<mrow><mrow><mfrac><mi>3</mi><mi>2</mi></mfrac></mrow></mrow>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mrow>
<mrow><mrow><mi>z</mi></mrow></mrow>
<mo>&#x2260;</mo>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mfrac><mi>9</mi><mi>2</mi></mfrac></mrow></mrow>
</mrow>
</mrow>
</mtd>
</mtr>
</mtable>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont3"></a>
<p>3. Zerlegen Sie die im Ausdruck enthaltenen quadratischen Trinome in Faktoren unter Anwendung des Satzes ueber das Zerlegen des quadratischen Trinoms in Faktoren.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mfrac>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>18 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>&#x00B7;</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mfrac><mi>3</mi><mi>2</mi></mfrac></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>&#x00B7;</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>z</mi></mrow><mrow><mo>+</mo><mfrac><mi>2</mi><mi>3</mi></mfrac></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
</mrow>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow></mfrac></mrow>
<mo>-</mo>
<mrow><mfrac>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi><msup><mi>z</mi><mi>2</mi></msup></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>9 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>81 </mi></mrow></mrow>
</mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow></mfrac></mrow>
<mo>+</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont4"></a>
<p>4. Kuerzen Sie Unter Anwendung der Haupteigenschaft des Bruchs den gebrochenen Ausdruck durch das von Null verschiedene lineare Polynom (den Ausdruck der Form "ax+b").</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>2 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>-</mo>
<mrow><mfrac>
<mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi><msup><mi>z</mi><mi>2</mi></msup></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>9 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>81 </mi></mrow></mrow>
</mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow></mfrac></mrow>
<mo>+</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont5"></a>
<p>5. Zerlegen Sie die im Ausdruck enthaltenen quadratischen Trinome in Faktoren unter Anwendung des Satzes ueber das Zerlegen des quadratischen Trinoms in Faktoren.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>2 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>-</mo>
<mrow><mfrac>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>&#x00B7;</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>3 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>&#x00B7;</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>z</mi></mrow><mrow><mo>+</mo><mfrac><mi>9</mi><mi>2</mi></mfrac></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
</mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow></mfrac></mrow>
<mo>+</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont6"></a>
<p>6. Kuerzen Sie Unter Anwendung der Haupteigenschaft des Bruchs den gebrochenen Ausdruck durch das von Null verschiedene lineare Polynom (den Ausdruck der Form "ax+b").</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>2 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>-</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>9 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>+</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont7"></a>
<p>7. Addieren Sie Polynome unter Anwendung der Definition der Addition.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>2 </mi></mrow><mrow><mo>+</mo><mi>3 </mi><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>9 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>+</mo>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont8"></a>
<p>8. Addieren Sie Polynome unter Anwendung der Definition der Addition.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mo maxsize="2">(</mo><mrow>
<mrow><mrow><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>2 </mi></mrow><mrow><mo>+</mo><mi>3 </mi><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>9 </mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
</mrow><mo maxsize="2">)</mo></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont9"></a>
<p>9. Gruppieren Sie aehnliche Polynomglieder.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>3 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>3 </mi><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>2 </mi><mi>z</mi></mrow><mrow><mo>+</mo><mi>2 </mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>9 </mi></mrow><mrow><mo>+</mo><mi>1 </mi></mrow></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont10"></a>
<p>10. Addieren Sie Koeffizienten bei aehnlichen Gliedern des Polynoms.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>4 </mi><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>6 </mi></mrow></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont11"></a>
<p>11. Dividieren Sie beide Seiten der Gleichung durch den groessten gemeinsamen Teiler der Koeffizienten des die Gleichung bildenden Polynoms. Als Ergebnis der durchgefuehrten Umformung erhaelt man folgende Gleichung, die der urspruenglichen aequivalent ist.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow><mrow><mo>&#x002D;&#x00A0;</mo><mi>3 </mi></mrow></mrow>
<mo>=</mo>
<mrow><mrow><mi>0 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont12"></a>
<p>12. Bringen Sie den Zahlensummanden von der linken Seite der Gleichung auf die rechte, unter Anwendung der Eigenschaft der Aequivalenz der Gleichungen bezueglich der Addition.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>2 </mi><mi>z</mi></mrow></mrow>
<mo>=</mo>
<mrow><mrow><mi>3 </mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont13"></a>
<p>13. Dividieren Sie beide Seiten der Gleichung durch den Zahlenkoeffizienten beim Argument Unter Anwendung der Eigenschaft der Aequivalenz der Gleichungen bezueglich der Multiplikation.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>z</mi></mrow></mrow>
<mo>=</mo>
<mrow><mrow><mfrac><mi>3</mi><mi>2</mi></mfrac></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont14"></a>
<p>14. Beachten Sie die Wertemenge, die beim Bestimmen des zulaessigen Wertebereiches erhalten wurden, und vergleichen Sie sie mit der gefundenen Loesung.</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>z</mi></mrow></mrow>
<mo>=</mo>
<mrow><mrow><mfrac><mi>3</mi><mi>2</mi></mfrac></mrow></mrow>
<mo>&#x2209;</mo>
<mrow><mrow><mi>D(f)</mi></mrow></mrow>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
<a name="pont15"></a>
<p>15. Antwort</p>
<table width="100%">
<tr>
<td>
</td>
<td width="95%">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<mrow>
<mrow><mrow><mi>z</mi></mrow></mrow>
<mo>&#x2208;</mo>
<mo>&#x02205;</mo>
</mrow>
</mrow>
</math>
</td>
</tr>
</table>
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