<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0">
  <channel>
    <title>diadematematica.com</title>
    <link>http://diadematematica.com/modules/smartsection/</link>
    <description>matemática - Aqui todo dia é dia de matemática !</description>
    <lastBuildDate>Fri, 10 Sep 2010 05:08:38 -0000</lastBuildDate>
    <docs>http://backend.userland.com/rss/</docs>
    <generator>SmartSection</generator>
    <category>Artigos</category>
    <managingEditor>d12209@diadematematica.com</managingEditor>
    <webMaster>d12209@diadematematica.com</webMaster>
    <language>pt_BR</language>
        <image>
      <title>diadematematica.com</title>
      <url>http://diadematematica.com/images/logo.gif</url>
      <link>http://diadematematica.com/modules/smartsection/</link>
      <width>140</width>
      <height>75.6756756757</height>
    </image>
            <item>
      <title>Demonstração Fórmula Volume de Esfera</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=30</link>
      <description>Autor:&lt;a href=&quot;mailto:kleber_kilhian@terra.com.br&quot;&gt;Kleber Kilhian&lt;/a&gt;&lt;div class=&#039;post-header&#039;&gt; &lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;p align=&quot;justify&quot;&gt;Para esta demonstração, utilizamos o conceito de integral definida.</description>
      <pubDate>Tue, 31 Aug 2010 19:40:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=30</guid>
    </item>
        <item>
      <title>Coeficientes Binomiais e o Binômio de Newton</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=29</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://4.bp.blogspot.com/_ssMz_adI0gA/S15NXaPCgFI/AAAAAAAABQ4/VqgFl53QfO4/s1600-h/triangulo_pascal2.jpg&quot;&gt;&lt;img style=&quot;margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 437px; height: 152px;&quot; src=&quot;http://4.bp.blogspot.com/_ssMz_adI0gA/S15NXaPCgFI/AAAAAAAABQ4/VqgFl53QfO4/s400/triangulo_pascal2.jpg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5430863265230127186&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;No post &lt;a href=&quot;http://fatosmatematicos.blogspot.com/2009/12/coeficientes-binomiais-e-o-triangulo-de.html&quot;&gt;Coeficientes Binomiais e o Triângulo de Pascal&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt; Neste artigo vamos apresentar outras aplicações destes números especiais.</description>
      <pubDate>Sun, 29 Aug 2010 22:20:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=29</guid>
    </item>
        <item>
      <title>Coeficientes Binomiais e o Triângulo de Pascal</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=28</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://2.bp.blogspot.com/_ssMz_adI0gA/SzKngcRA_fI/AAAAAAAABII/byM1p5kbxVY/s1600-h/binomio_newton.jpg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 437px; height: 152px;&quot; src=&quot;http://2.bp.blogspot.com/_ssMz_adI0gA/SzKngcRA_fI/AAAAAAAABII/byM1p5kbxVY/s400/binomio_newton.jpg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5418577477465341426&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;Neste post apresentarei algumas propriedades dos coeficientes binomiais e sua relação com o triângulo de Pascal.</description>
      <pubDate>Sun, 29 Aug 2010 22:10:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=28</guid>
    </item>
        <item>
      <title>O Método de Eliminação de Gauss para Sistemas Lineares</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=25</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://1.bp.blogspot.com/_ssMz_adI0gA/TDOD6wZYduI/AAAAAAAAB_k/71H-QdmdXDw/s1600/sistlinear1.png&quot;&gt;&lt;img style=&quot;float: left; margin: 0pt 10px 10px 0pt; cursor: pointer; width: 400px; height: 184px;&quot; src=&quot;http://1.bp.blogspot.com/_ssMz_adI0gA/TDOD6wZYduI/AAAAAAAAB_k/71H-QdmdXDw/s400/sistlinear1.png&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5490877416141780706&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;Um dos métodos  mais eficientes para resolver sistemas lineares e achar a inversa de  uma matriz é o método de eliminação de Gauss.&lt;/span&gt;&lt;/span&gt;&lt;br /&gt;&lt;/div&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;</description>
      <pubDate>Sun, 29 Aug 2010 22:00:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=25</guid>
    </item>
        <item>
      <title>A Desigualdade de Cauchy-Schwarz</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=26</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://2.bp.blogspot.com/_ssMz_adI0gA/S0-X-mhS34I/AAAAAAAABL4/rxT0sqavEog/s1600-h/desigualdade_cauchy.jpg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 381px; height: 113px;&quot; src=&quot;http://2.bp.blogspot.com/_ssMz_adI0gA/S0-X-mhS34I/AAAAAAAABL4/rxT0sqavEog/s400/desigualdade_cauchy.jpg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5426723177752616834&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;</description>
      <pubDate>Sun, 29 Aug 2010 22:00:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=26</guid>
    </item>
        <item>
      <title>O Princípio da Casa dos Pombos</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=27</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://2.bp.blogspot.com/_ssMz_adI0gA/SlGAW3G7FfI/AAAAAAAAALI/Sl-tLbyezE0/s1600-h/pombo.jpeg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 179px; height: 142px;&quot; src=&quot;http://2.bp.blogspot.com/_ssMz_adI0gA/SlGAW3G7FfI/AAAAAAAAALI/Sl-tLbyezE0/s320/pombo.jpeg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5355202562158695922&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;O princípio da casa dos pombos afirma que se tivermos &lt;/span&gt;&lt;img style=&quot;font-family: verdana; color: rgb(0, 0, 153);&quot; alt=&quot;[;n;]&quot; title=&quot;n&quot; src=&quot;http://thewe.net/tex/n&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; casas para acomodar &lt;/span&gt;&lt;img style=&quot;font-family: verdana; color: rgb(0, 0, 153);&quot; alt=&quot;[;n+1;]&quot; title=&quot;n+1&quot; src=&quot;http://thewe.net/tex/n+1&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; pombos, então podemos afirmar que existe uma casa com &lt;/span&gt;&lt;img style=&quot;font-family: verdana; color: rgb(0, 0, 153);&quot; alt=&quot;[;2;]&quot; title=&quot;2&quot; src=&quot;http://thewe.net/tex/2&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; pombos. Este princípio matemático é devido ao matemático alemão Dirichlet que o relatou em &lt;/span&gt;&lt;img style=&quot;font-family: verdana; color: rgb(0, 0, 153);&quot; alt=&quot;[;1834;]&quot; title=&quot;1834&quot; src=&quot;http://thewe.net/tex/1834&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; e é também conhecido por princípio das gavetas.&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style=&quot;text-align: justify; color: rgb(0, 0, 153);&quot;&gt; &lt;/div&gt;&lt;div  style=&quot;text-align: justify;font-family:verdana;&quot;&gt;&lt;br /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;</description>
      <pubDate>Sun, 29 Aug 2010 22:00:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=27</guid>
    </item>
        <item>
      <title>Criptografando Através de Matrizes</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=24</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://4.bp.blogspot.com/_ssMz_adI0gA/Swx_uv1Hd0I/AAAAAAAAA-k/0hFVpyMuiv8/s1600/criptografia_matriz2.jpg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 331px; height: 331px;&quot; src=&quot;http://4.bp.blogspot.com/_ssMz_adI0gA/Swx_uv1Hd0I/AAAAAAAAA-k/0hFVpyMuiv8/s320/criptografia_matriz2.jpg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5407837693655086914&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;A criptografia é uma ciência muito rica e interessante que desenvolveu ao longo da história, culminando na máquina enigma usada pelos nazistas durante a Segunda Grande Guerra Mundial e aos modernos computadores. Para os interessados nessa história, recomendo o livro de Simon Singh &quot;O Livro dos Códigos&quot; da Editora Record.&lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;/div&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;</description>
      <pubDate>Sun, 29 Aug 2010 21:50:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=24</guid>
    </item>
        <item>
      <title>A Lei dos Cossenos Através da Regra de Cramer</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=23</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://1.bp.blogspot.com/_ssMz_adI0gA/SwdcRX2GI_I/AAAAAAAAA9M/0xjZYTRW-bw/s1600/cramer1.jpg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 397px; height: 204px;&quot; src=&quot;http://1.bp.blogspot.com/_ssMz_adI0gA/SwdcRX2GI_I/AAAAAAAAA9M/0xjZYTRW-bw/s400/cramer1.jpg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5406391331210011634&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;As vezes a relação entre assuntos de áreas distintas da Matemática nos surpreende muito. Por exemplo, todos conhecem a Lei dos Cossenos que diz que &quot;&lt;/span&gt;&lt;span style=&quot;font-style: italic; color: rgb(0, 0, 153); font-family: verdana;&quot;&gt;o quadrado de um lado qualquer de um triângulo é igual a soma dos quadrados dos outros dois lados menos duas vezes o produto desses lados pelo cosseno do ângulo formado por eles&quot;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; e uma demonstração clássica é a aplicação do Teorema de Pitágoras.&lt;/span&gt;&lt;/div&gt;&lt;div style=&quot;text-align: justify;&quot;&gt; &lt;/div&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span style=&quot;font-family:verdana;&quot;&gt;&lt;br /&gt;</description>
      <pubDate>Tue, 24 Aug 2010 23:20:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=23</guid>
    </item>
        <item>
      <title>Algumas Propriedades das Equações Cúbicas</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=22</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://3.bp.blogspot.com/_ssMz_adI0gA/Sq1N199cYFI/AAAAAAAAAoI/ttPXUKspuTg/s1600-h/cubica2.jpeg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 160px; height: 101px;&quot; src=&quot;http://3.bp.blogspot.com/_ssMz_adI0gA/Sq1N199cYFI/AAAAAAAAAoI/ttPXUKspuTg/s320/cubica2.jpeg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5381042719338291282&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;&lt;span style=&quot;font-weight: bold;&quot;&gt;Definição 1:&lt;/span&gt; Uma equação do &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;3^{\circ};]&quot; title=&quot;3^{\circ}&quot; src=&quot;http://thewe.net/tex/3%5E%7B%5Ccirc%7D&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; grau é uma expressão da forma&lt;br /&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;  &lt;/div&gt;&lt;div style=&quot;text-align: center;&quot;&gt;&lt;div style=&quot;text-align: center;&quot;&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;ax^3 + bx^2 + cx + d = 0 \quad (1);]&quot; title=&quot;ax^3 + bx^2 + cx + d = 0 \quad (1)&quot; src=&quot;http://thewe.net/tex/ax%5E3%20+%20bx%5E2%20+%20cx%20+%20d%20=%200%20%5Cquad%20%281%29&quot; /&gt;&lt;br /&gt;&lt;br /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;  &lt;/span&gt; &lt;/div&gt;&lt;div style=&quot;text-align: left;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;sendo &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;a,b,c,d \in \mathbb{R};]&quot; title=&quot;a,b,c,d \in \mathbb{R}&quot; src=&quot;http://thewe.net/tex/a,b,c,d%20%5Cin%20%5Cmathbb%7BR%7D&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; com &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;a \neq 0;]&quot; title=&quot;a \neq 0&quot; src=&quot;http://thewe.net/tex/a%20%5Cneq%200&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;.&lt;br /&gt;Fazendo a mudança de variável &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;x = y - \frac{b}{3a};]&quot; title=&quot;x = y - \frac{b}{3a}&quot; src=&quot;http://thewe.net/tex/x%20=%20y%20-%20%5Cfrac%7Bb%7D%7B3a%7D&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;, obtemos a equação:&lt;/span&gt;  &lt;/div&gt;&lt;div style=&quot;text-align: center;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;div style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;&lt;span&gt;&lt;img alt=&quot;[;y^3 + py + q =0 \quad (2);]&quot; title=&quot;y^3 + py + q =0 \quad (2)&quot; src=&quot;http://thewe.net/tex/y%5E3%20+%20py%20+%20q%20=0%20%5Cquad%20%282%29&quot; /&gt;&lt;/span&gt;&lt;/span&gt;&lt;br /&gt;&lt;/div&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;&lt;span&gt;&lt;/span&gt;&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;&lt;span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style=&quot;text-align: left;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;onde &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;p = \frac{c}{a} - \frac{b^2}{3a^2};]&quot; title=&quot;p = \frac{c}{a} - \frac{b^2}{3a^2}&quot; src=&quot;http://thewe.net/tex/p%20=%20%5Cfrac%7Bc%7D%7Ba%7D%20-%20%5Cfrac%7Bb%5E2%7D%7B3a%5E2%7D&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt; e &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153); font-family: verdana;&quot; alt=&quot;[;q = \frac{2b^3}{27a^3} - \frac{bc}{3a^2} + \frac{d}{a};]&quot; title=&quot;q = \frac{2b^3}{27a^3} - \frac{bc}{3a^2} + \frac{d}{a}&quot; src=&quot;http://thewe.net/tex/q%20=%20%5Cfrac%7B2b%5E3%7D%7B27a%5E3%7D%20-%20%5Cfrac%7Bbc%7D%7B3a%5E2%7D%20+%20%5Cfrac%7Bd%7D%7Ba%7D&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;. &lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;Assim, o estudo da equação &lt;img alt=&quot;[;(1);]&quot; title=&quot;(1)&quot; src=&quot;http://thewe.net/tex/%281%29&quot; /&gt; reduz ao estudo das equações da forma &lt;img alt=&quot;[;(2);]&quot; title=&quot;(2)&quot; src=&quot;http://thewe.net/tex/%282%29&quot; /&gt;.&lt;br /&gt;&lt;br /&gt;</description>
      <pubDate>Tue, 24 Aug 2010 23:10:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=22</guid>
    </item>
        <item>
      <title>Transformações de Radicais</title>
      <link>http://diadematematica.com/modules/smartsection/item.php?itemid=20</link>
      <description>Autor:&lt;a href=&quot;mailto:linnux2001@gmail.com&quot;&gt;Prof. Ms. Paulo Sérgio C. Lino &lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;div class=&#039;post-header-line-1&#039;&gt;&lt;/div&gt; &lt;br /&gt;&lt;div class=&#039;post-body entry-content&#039;&gt; &lt;br /&gt;&lt;div style=&quot;font-family: verdana; text-align: justify;&quot;&gt;&lt;a onblur=&quot;try {parent.deselectBloggerImageGracefully();} catch(e) {}&quot; href=&quot;http://3.bp.blogspot.com/_ssMz_adI0gA/SlXOI27wehI/AAAAAAAAAOg/6dQIO5E57-k/s1600-h/mathsimpson1.jpeg&quot;&gt;&lt;img style=&quot;margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 151px; height: 115px;&quot; src=&quot;http://3.bp.blogspot.com/_ssMz_adI0gA/SlXOI27wehI/AAAAAAAAAOg/6dQIO5E57-k/s320/mathsimpson1.jpeg&quot; alt=&quot;&quot; id=&quot;BLOGGER_PHOTO_ID_5356413983407503890&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;color: rgb(0, 0, 153);font-family:verdana;&quot; &gt;Neste post irei deduzir uma fórmula para reduzir expressões da forma&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt; &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153);&quot; alt=&quot;[;\sqrt{A \pm \sqrt{B}};]&quot; title=&quot;\sqrt{A \pm \sqrt{B}}&quot; src=&quot;http://thewe.net/tex/%5Csqrt%7BA%20%5Cpm%20%5Csqrt%7BB%7D%7D&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt; na soma ou diferença de dois radicais simples com a hipótese de que &lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;img alt=&quot;[;A\pm \sqrt{B};]&quot; title=&quot;A\pm \sqrt{B}&quot; src=&quot;http://thewe.net/tex/A%5Cpm%20%5Csqrt%7BB%7D&quot; /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt; e &lt;/span&gt;&lt;img style=&quot;color: rgb(0, 0, 153);&quot; alt=&quot;[;B;]&quot; title=&quot;B&quot; src=&quot;http://thewe.net/tex/B&quot; /&gt;&lt;span style=&quot;color: rgb(0, 0, 153);&quot;&gt; são números positivos.</description>
      <pubDate>Sun, 22 Aug 2010 01:00:00 -0000</pubDate>
      <guid>http://diadematematica.com/modules/smartsection/item.php?itemid=20</guid>
    </item>
      </channel>
</rss>