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 <title><![CDATA[[求学]学过高数的进来看看这题]]></title>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525]]></link>
 <description><![CDATA[Latest 20 replies of [求学]学过高数的进来看看这题]]></description>
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 <description><![CDATA[恩。。。。没啊。。。动手要翻书找公式的。。。辛苦啊]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#110510]]></link>
 <author><![CDATA[dodomine]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 13 Aug 2004 10:25:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote][b]下面是引用dodomine于2004-08-13 6:02 PM发表的 :[/b]
分步积分，满简单的[/quote]
嘿嘿...多多你么动手吧? [s:30]]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#110504]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 13 Aug 2004 10:24:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[分步积分，满简单的]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#110487]]></link>
 <author><![CDATA[dodomine]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 13 Aug 2004 10:02:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[来, 试试看能不能在win下打开, 是个完整的过程, 答案我也和maxima的对过了]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#110477]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Fri, 13 Aug 2004 09:53:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这么懒呢, 嘿嘿, 我昨天就用maxima算过一次了^^]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#109884]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 12 Aug 2004 04:26:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[...by using Derive 5]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#109783]]></link>
 <author><![CDATA[sunnybear]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 12 Aug 2004 03:45:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我吃完饭再来. 本来想打了公式转成pdf传上了, 不过我的texmacs好象出了点问题]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#109777]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 12 Aug 2004 03:39:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[Integrate (x/(1+x^4), x) = sqrt(2)/4 * Integrate (x/(1-sqrt(2)x+x^2) - x/(1+sqrt(2)x + x^2), x)
~ Integrate(x/[(x - sqrt(2)/2)^2 + (1/2)] + x/[x+sqrt(2)/2)^2 + (1/2)], x)
明白了?]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#109772]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 12 Aug 2004 03:38:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote][b]下面是引用galilette于2004-08-11 3:18 PM发表的 :[/b]
x^4+1=(x^2+sqrt(2)x+1)*(x^2-sqrt(2)x+1)
会这个分解就可以做了[/quote]
yeah.. i&#39;m up to here. but what next step?
it doesn&#39;t make any sense to me to get log from even by using 
a/(x^2+sqrt(2)x+1)+b(x^2-sqrt(2)x+1)=1]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#109561]]></link>
 <author><![CDATA[sunnybear]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Thu, 12 Aug 2004 01:23:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[x^4+1=(x^2+sqrt(2)x+1)*(x^2-sqrt(2)x+1)
会这个分解就可以做了]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#108680]]></link>
 <author><![CDATA[galilette]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 11 Aug 2004 07:18:51 +0000]]></pubdate>
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 <description><![CDATA[怎么会有2个答案?
是多解还是你不确定]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#108396]]></link>
 <author><![CDATA[薄薄没香]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 11 Aug 2004 03:56:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote][b]下面是引用薄薄没香于2004-08-11 11:49 AM发表的 :[/b]
你们还没解出来?
看来高数还真不简单[/quote]
i&#39;ve got two answers now...and i&#39;ve sent them to deportivo..forget to back up]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#108388]]></link>
 <author><![CDATA[sunnybear]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 11 Aug 2004 03:51:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你们还没解出来?
看来高数还真不简单]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#108386]]></link>
 <author><![CDATA[薄薄没香]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 11 Aug 2004 03:49:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote][b]下面是引用看烟花的猪于2004-08-10 1:26 PM发表的 :[/b]
答案还是tan(x)??[/quote]
kidding me....]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#108373]]></link>
 <author><![CDATA[sunnybear]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 11 Aug 2004 03:34:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote][b]下面是引用deportivo于2004-08-10 10:44 AM发表的 :[/b]
有答案么？看看结果对不对[/quote]
check ur message plz]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#108372]]></link>
 <author><![CDATA[sunnybear]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Wed, 11 Aug 2004 03:33:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[答案还是tan(x)??]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#107207]]></link>
 <author><![CDATA[看烟花的猪]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Tue, 10 Aug 2004 05:26:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[bear，你算的答案是什么？看看和我算的一不一样好吗]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#107174]]></link>
 <author><![CDATA[deportivo]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Tue, 10 Aug 2004 05:06:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我差不多有结果了，可是不会传上来 [s:31]]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#107133]]></link>
 <author><![CDATA[deportivo]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Tue, 10 Aug 2004 04:12:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote][b]下面是引用sunnybear于2004-08-10 11:45 AM发表的 :[/b]
2 &nbsp;  &nbsp;  &nbsp;  &nbsp;  &nbsp;  &nbsp;  2 &nbsp;  &nbsp;  &nbsp;  &nbsp; 
(x  + &#8249;2x + 1)·(x  - &#8249;2x + 1)[/quote]
收到了的吗?

我的数学水平还是做不出来的 [s:29]]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#107128]]></link>
 <author><![CDATA[o_ice_o]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Tue, 10 Aug 2004 04:04:44 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[2 &nbsp;  &nbsp;  &nbsp;  &nbsp;  &nbsp;  &nbsp;  2 &nbsp;  &nbsp;  &nbsp;  &nbsp; 
(x  + &#8249;2x + 1)·(x  - &#8249;2x + 1)]]></description>
 <link><![CDATA[http://www.doggiehome.com/read.php?tid=9525#107119]]></link>
 <author><![CDATA[sunnybear]]></author>
 <category><![CDATA[哇啦哇啦 Discuss & Talk aloud]]></category>
 <pubdate><![CDATA[Tue, 10 Aug 2004 03:45:15 +0000]]></pubdate>
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