📄 7.8.2.htm
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<title>7.2的解答</title>
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<center><font class="title2"><b>练习7.2</b></font></center><br>
<p align="left">解<span lang="EN-US">答</span>:<span lang="EN-US">
</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span
style="mso-tab-count: 1; font-size: 7.5pt; mso-bidi-font-size: 10.0pt" lang="EN-US"></span><span
lang="EN-US">a)</span><span
style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">:四元式序列为:</span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p> </o:p> </span></p>
<table border="1" cellspacing="0" cellpadding="0"
style="margin-left:32.4pt;
border-collapse:collapse;mso-table-layout-alt:fixed;border:none;mso-border-alt:
solid windowtext .5pt;mso-padding-alt:0cm 5.4pt 0cm 5.4pt">
<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"> <b style="mso-bidi-font-weight:normal"><span lang="EN-US"><o:p> </o:p> </span></b></td>
<td width="108" valign="top"
style="width:81.0pt;border:solid windowtext .5pt;
border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><b style="mso-bidi-font-weight:normal"><span lang="EN-US">op<o:p> </o:p> </span></b></td>
<td width="96" valign="top"
style="width:72.0pt;border:solid windowtext .5pt;
border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><b style="mso-bidi-font-weight:normal"><span lang="EN-US">arg1<o:p> </o:p> </span></b></td>
<td width="108" valign="top"
style="width:81.0pt;border:solid windowtext .5pt;
border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><b style="mso-bidi-font-weight:normal"><span lang="EN-US">arg2<o:p> </o:p> </span></b></td>
<td width="108" valign="top"
style="width:81.0pt;border:solid windowtext .5pt;
border-left:none;mso-border-left-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><b style="mso-bidi-font-weight:normal"><span lang="EN-US">result<o:p> </o:p> </span></b></td>
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<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(1)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">+</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">a</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">b</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">1</span></td>
</tr>
<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(2)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">+</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal">c</td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal">d <span lang="EN-US"><o:p> </o:p> </span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">2</span></td>
</tr>
<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(3)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">*</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">1</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">2</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">3</span></td>
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<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(4)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">uminus</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">3</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"> </td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">4</span></td>
</tr>
<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(5)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">+</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">a</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">b</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">5</span></td>
</tr>
<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(6)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">+</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">5</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">c</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">6</span></td>
</tr>
<tr>
<td width="72" valign="top"
style="width:54.0pt;border:solid windowtext .5pt;
border-top:none;mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">(7)</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">+</span></td>
<td width="96" valign="top"
style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt"><p
class="MsoNormal"><span lang="EN-US">t</span><span lang="EN-US"
style="font-size:7.5pt;mso-bidi-font-size:10.0pt">4</span></td>
<td width="108" valign="top"
style="width:81.0pt;border-top:none;border-left:
none;border-bottom:solid windowtext .5pt;border-right:solid windowtext .5pt;
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