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    <title>Math Pro 數學補給站 - 選修的數學課程</title>
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    <description>Latest 20 threads of 選修的數學課程</description>
    <copyright>Copyright(C) Math Pro 數學補給站</copyright>
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    <item>
      <title>想請問一題黎曼和轉積分的問題</title>
      <link>http://math.pro/db/viewthread.php?tid=3936</link>
      <description><![CDATA[\(\displaystyle \lim_{n\to \infty}\frac{2}{n}\left\)
想請教這題如何轉換
謝謝]]></description>
      <category>選修的數學課程</category>
      <author>ljwysl</author>
      <pubDate>Sat, 01 Mar 2025 04:26:37 +0000</pubDate>
    </item>
    <item>
      <title>請教切線</title>
      <link>http://math.pro/db/viewthread.php?tid=3819</link>
      <description><![CDATA[直線\(L\)與曲線\(y=x^4-x^3+2x\)切於相異兩點，求\(L\)的方程式？
答案：\(\displaystyle y=\frac{15}{8}x-\frac{1}{64}\)
如附件,請問如何解,謝謝 !]]></description>
      <category>選修的數學課程</category>
      <author>thankyou</author>
      <pubDate>Wed, 13 Mar 2024 01:17:44 +0000</pubDate>
    </item>
    <item>
      <title>餘弦換正弦</title>
      <link>http://math.pro/db/viewthread.php?tid=3747</link>
      <description><![CDATA[請問如何證明？
If \(cosx_1+cosx_2+\ldots+cosx_{2023}=0\),then
\(sinx_1+sinx_2+\ldots+sinx_{2023}=2023\).]]></description>
      <category>選修的數學課程</category>
      <author>iammark</author>
      <pubDate>Thu, 25 May 2023 03:32:57 +0000</pubDate>
    </item>
    <item>
      <title>請問有人能教我這題嗎</title>
      <link>http://math.pro/db/viewthread.php?tid=3600</link>
      <description><![CDATA[請問有人能教我這題嗎]]></description>
      <category>選修的數學課程</category>
      <author>aaaaaaa3372</author>
      <pubDate>Mon, 27 Dec 2021 11:03:50 +0000</pubDate>
    </item>
    <item>
      <title>三角方程式02</title>
      <link>http://math.pro/db/viewthread.php?tid=3541</link>
      <description><![CDATA[如下圖，請問要如何解？謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 07 Aug 2021 14:25:59 +0000</pubDate>
    </item>
    <item>
      <title>三角方程式01</title>
      <link>http://math.pro/db/viewthread.php?tid=3540</link>
      <description><![CDATA[如果，請問要如何解，謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 07 Aug 2021 14:20:23 +0000</pubDate>
    </item>
    <item>
      <title>求解</title>
      <link>http://math.pro/db/viewthread.php?tid=3523</link>
      <description><![CDATA[對所有正整數 n，令 An = (1 + 1/n)^n, Bn = (1 + 1/n)^n+1, Cn =2AnBn/(An+Bn)，
證明 C1 &lt; C2 &lt; · · · &lt; Cn &lt; · · · 。]]></description>
      <category>選修的數學課程</category>
      <author>ysh</author>
      <pubDate>Thu, 10 Jun 2021 00:01:23 +0000</pubDate>
    </item>
    <item>
      <title>微積分04</title>
      <link>http://math.pro/db/viewthread.php?tid=3402</link>
      <description><![CDATA[已知\(\displaystyle \int_0^2 xf(x)dx=k\)，求\(\displaystyle \int_0^4 f(\sqrt{x})dx\)。
請問要如何求？謝謝！  ans: 2k]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 10 Oct 2020 04:27:14 +0000</pubDate>
    </item>
    <item>
      <title>微積分03</title>
      <link>http://math.pro/db/viewthread.php?tid=3401</link>
      <description><![CDATA[已知\(\displaystyle F(x)=\int_1^x sin2t dt\)，求\(\displaystyle F'\left(\frac{\pi}{12}\right)\)的值。
請問要如何求出答案，謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 10 Oct 2020 04:01:43 +0000</pubDate>
    </item>
    <item>
      <title>積分--直線運動01</title>
      <link>http://math.pro/db/viewthread.php?tid=3399</link>
      <description><![CDATA[如圖，請問要如何解答？謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Mon, 05 Oct 2020 13:30:25 +0000</pubDate>
    </item>
    <item>
      <title>微積分 02</title>
      <link>http://math.pro/db/viewthread.php?tid=3393</link>
      <description><![CDATA[請問這題是要怎樣求，謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 26 Sep 2020 12:56:47 +0000</pubDate>
    </item>
    <item>
      <title>微積分01</title>
      <link>http://math.pro/db/viewthread.php?tid=3392</link>
      <description><![CDATA[如圖，請問要如何求，謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 26 Sep 2020 12:55:55 +0000</pubDate>
    </item>
    <item>
      <title>微分03</title>
      <link>http://math.pro/db/viewthread.php?tid=3389</link>
      <description><![CDATA[如图，请问要如何作答？谢谢！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Mon, 07 Sep 2020 10:56:22 +0000</pubDate>
    </item>
    <item>
      <title>微分02</title>
      <link>http://math.pro/db/viewthread.php?tid=3387</link>
      <description><![CDATA[另一題，請問要如何解？謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 05 Sep 2020 04:23:26 +0000</pubDate>
    </item>
    <item>
      <title>微分01</title>
      <link>http://math.pro/db/viewthread.php?tid=3386</link>
      <description><![CDATA[如圖，請問要如何解？謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 05 Sep 2020 04:22:49 +0000</pubDate>
    </item>
    <item>
      <title>旋轉體積02</title>
      <link>http://math.pro/db/viewthread.php?tid=3375</link>
      <description><![CDATA[如圖所說，請問要如何看出是哪個地方要做旋轉？
請大大幫忙說明，謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Sat, 08 Aug 2020 05:29:44 +0000</pubDate>
    </item>
    <item>
      <title>旋轉體積01</title>
      <link>http://math.pro/db/viewthread.php?tid=3374</link>
      <description><![CDATA[如圖所敘述的題目，請問要如何處理？ 謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Mon, 03 Aug 2020 13:32:12 +0000</pubDate>
    </item>
    <item>
      <title>三角函數積分</title>
      <link>http://math.pro/db/viewthread.php?tid=3373</link>
      <description><![CDATA[請教這題]]></description>
      <category>選修的數學課程</category>
      <author>Exponential</author>
      <pubDate>Mon, 03 Aug 2020 09:55:35 +0000</pubDate>
    </item>
    <item>
      <title>請益一題數列極限問題</title>
      <link>http://math.pro/db/viewthread.php?tid=3364</link>
      <description><![CDATA[設\(a,b,c\)表\(x^3-3x^2+x+2=0\)之三根且\(a]]></description>
      <category>選修的數學課程</category>
      <author>boyam</author>
      <pubDate>Tue, 14 Jul 2020 04:31:03 +0000</pubDate>
    </item>
    <item>
      <title>不定積分 01 (理積數學)</title>
      <link>http://math.pro/db/viewthread.php?tid=3361</link>
      <description><![CDATA[如圖的不定積分要如何解？
謝謝！]]></description>
      <category>選修的數學課程</category>
      <author>shmilyho</author>
      <pubDate>Tue, 07 Jul 2020 09:18:56 +0000</pubDate>
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