难题一个,谁敢挑战?????????????

眼光落地

<p><font color="#1a1ae6"><strong><em></em></strong></font></p><p><font color="#1a1ae6"><strong><em>难题一个,谁敢挑战?????????????</em></strong></font></p><p><img height="531" src="http://resource.chinakids.net.cn/img/061112/cd742080-998a-48a5-ab02-fb2439635465.jpg" width="807" alt=""/></p>

眼光落地

<p>补充一下:</p><p><img src="http://resource.chinakids.net.cn/img/061112/7bf9f392-19c2-4c5b-884f-4da953d45550.jpg" alt=""/></p><p></p><p></p>

sightqun

<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" coordsize="21600,21600" ospt="75" opreferrelative="t"></shapetype>&nbsp;<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">很明显</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600">&nbsp;<stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_i1025" type="#_x0000_t75" style="WIDTH: 384.75pt; HEIGHT: 208.5pt;"><imagedata otitle="第一部分" src="file:///C:\DOCUME~1\王力群\LOCALS~1\Temp\msohtml1\02\clip_image001.jpg"></imagedata></shape></span></span></p></span>

sightqun

<p>今天随意看了一下数模网站，发现此帖，这位兄弟想知道结果可发邮件到<a href="mailto:junyang517@163.co">junyang517@163.co</a>m</p><p><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600">&nbsp;<stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype></span></p>

眼光落地

真得能做出来吗？？？？？？？？？？

眼光落地

<p><strong><font color="#1dc03e">应该很复杂吧!!!</font></strong></p><p><strong><font color="#c84995">能推出一个简明的递推关系及通项公式吗??????????????????</font></strong></p><p></p>

眼光落地

请问收到邮件了吗

jessica11

不会啊

眼光落地

<p>谁有办法呀!!!!!!!!!!!!!!!!!!</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 谁有办法呀!!!!!!!!!!!!!!!!!!</p><p></p>

眼光落地

题目能看清楚吧